Soda can make up nice real-world statistics. For example, do you suppose that taste tests for New Coke led them to make the change the formula (for those of us old enough to remember that event) but looking too close at that quantitative data caused them to overlook other qualitative data, like perhaps a negative reaction to an iconic brand that would tank sales? They were inferring something (future sales) from only the data they had. Is anyone perhaps familiar with the term "GIGO"?

According to the case study on the new coke I found, Coca-Cola spent $4 million (way back when) on market research and concluded from its research and blind taste tests that people preferred the new formula. Unfortunately, they did not do a study to understand the "emotional attachment" consumers had with the classic coke. After launching the new formula, people were outraged, and Coca-Cola responded by returning to the original formula.

In this example the company did follow the statistics illustrated from the marketing research and ultimately made a very serious error. We could measure taste on a quantitative scale (for example 1 = really don’t like taste and 10 = really like taste) but the emotional attachment would be qualitative (not able to quantify).

Soda can make up nice real-world statistics. For example, do you suppose that taste tests for New Coke led them to make the change the formula (for those of us old enough to remember that event) but looking too close at that quantitative data caused them to overlook other qualitative data, like perhaps a negative reaction to an iconic brand that would tank sales? They were inferring something (future sales) from only the data they had. Is anyone perhaps familiar with the term "GIGO"?

1/4 and 4

Step-by-step explanation:

small to large: 2/8 =1/4

large to small: 8/2 =4

Answer: 2x4=8 , 16x8=128

128x8=1024

Step-by-step explanation: hope I help with your problems and sorry if it wrong

In analyzing the performance of implementing the given methods over Singly Linked List and Doubly Linked List data structures, we consider the Big-O notation, which provides insight into the time complexity of these operations as the size of the list increases.

Add to Start of List:

Singly Linked List: O(1)

Doubly Linked List: O(1)

Both Singly Linked List and Doubly Linked List offer constant time complexity, O(1), for adding an element to the start of the list.

This is because the operation only involves updating the head pointer (for the Singly Linked List) or the head and previous pointers (for the Doubly Linked List). It does not require traversing the entire list, regardless of its size.

Add to End of List:

Singly Linked List: O(n)

Doubly Linked List: O(1)

Adding an element to the end of a Singly Linked List has a time complexity of O(n), where n is the number of elements in the list. This is because we need to traverse the entire list to reach the end before adding the new element.

In contrast, a Doubly Linked List offers a constant time complexity of O(1) for adding an element to the end.

This is possible because the list maintains a reference to both the tail and the previous node, allowing efficient insertion.

Add at Given Index:

Singly Linked List: O(n)

Doubly Linked List: O(n)

Adding an element at a given index in both Singly Linked List and Doubly Linked List has a time complexity of O(n), where n is the number of elements in the list.

This is because, in both cases, we need to traverse the list to the desired index, which takes linear time.

Additionally, for a Doubly Linked List, we need to update the previous and next pointers of the surrounding nodes to accommodate the new element.

In summary, Singly Linked List has a constant time complexity of O(1) for adding to the start and a linear time complexity of O(n) for adding to the end or at a given index.

On the other hand, Doubly Linked List offers constant time complexity of O(1) for adding to both the start and the end, but still requires linear time complexity of O(n) for adding at a given index due to the need for traversal.

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Answer:

3. C≈31.42

4.C≈94.25

Step-by-step explanation:

10 ÷ 2 =5

C=2πr

c=2 (3.14) 5

c= 2(3.14)15

Danielle viewed 7 movies on demand, thus you must divide her 35 dollars among them. So the monthly charge for Danielle's cable bill is $5.

Danielle pays a monthly charge of $69 for her cable bill.

She also pays a fee every time she watches a movie on demand.

Last month Danielle watched 7 movies on demand, and her total monthly bill was $104.

We have to find the monthly charge for Danielle's cable bill to choose.

Remove the monthly fee of 69 dollars for cable service from the total of 104 dollars, then check the statement to see that there is still a mystifying 35 dollars on it.

Danielle viewed 7 movies on demand, thus you must divide her 35 dollars among them, giving you the result of $5 per on-demand movie.

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Answer:

11/5 x^2 + 5/2 xy + 3/2 y.

Step-by-step explanation:

2x . (x+y) + 1/5 x.x + 1/2 y . (x + 3)

= 2x^2 + 2xy + 1/5 x^2 + 1/2xy + 3/2 y

= 11/5 x^2 + 5/2 xy + 3/2 y.

Answer:

We conclude that Neither A nor B represents the function.

Hence, the correct option is:

Step-by-step explanation:

A function relates an input to an output.

For example, a certain animal grows 30 cm each year. Thus, the height of the animal is associated with its age using the function

h (age) = age × 30

Therefore, if the age of the animal is 3 years, the height is:

h(3) = 3 × 10 = 90 cm

Set A

A = {(1, −5), (8, −5), (8, 7), (2, 9)}

Please check that there are duplicated inputs.

i.e. x = 8 is appeared twice.

Thus, set A does not represent the function because the function has repeated inputs or x-values. In other words, each input is not related to exactly one output.

Therefore, the set A of ordered pairs does not represent a function.

Set B

B = {(7, −4), (7, −2), (6, −3), (−9, 5)}

Please check that there are duplicated inputs.

i.e. x = 7 is appeared twice.

Thus, the set B does not represent the function because the function has repeated inputs or x-values. In other words, each input is not related to exactly one output.

Therefore, the set B of ordered pairs also does not represent a function.

Conclusion:

We conclude that Neither A nor B represents the function.

Hence, the correct option is:

The probability that a woman tests positive given that she has breast cancer is 7/8 and the probability that a woman tests negative for breast cancer given that her test result is negative is 923/1000.

Probability is the possibility of happening an event.

Since 14 of 16 have breast cancer test positive, the probability is:

p = 14/16

p = 7/8

Therefore, the probability that a woman tests positive given that she has breast cancer is 7/8.

The number of women who test negative is:

2000 - 154

= 1846

Therefore, 1846 out of 2000 women test negative.

The probability of a woman testing negative is:

p = 1846/2000

p = 923/1000

Therefore, The probability that a woman tests negative for breast cancer given that her test result is negative is 923/1000.

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Answer:

35x ≤ 1000

Step-by-step explanation:

Can I have brainliest? It would help me out, if not thanks anyways! Hope this helped and have a nice day!

Answer:

7,091.61

Step-by-step explanation:

If you have a number 1. (39393939) and you have another number 2. (5555) and you want the second number to get the same amount as the other numbers but evenly, you need to divided the first number with the second number.

Ex. 39393939/ 5555 = 7,091.61

So each bunny will get 7,091.61 carrots.

Answer:

3

Step-by-step explanation:

Calculating a

Substitute in the 2nd equation

To find a value of c such that P(z ≥ c) = 0.55, we need to use a standard normal distribution table or calculator.From the standard normal distribution table, we find that the z-score corresponding to a right-tailed area of 0.55 is approximately 0.126.

Therefore, we have:

P(z ≥ c) = 0.55

P(z ≤ c) = 1 - P(z ≥ c) = 1 - 0.55 = 0.45

Using the standard normal distribution table, we find that the z-score corresponding to a left-tailed area of 0.45 is approximately -0.126.

So, c = -0.126.

Therefore, the value of c that satisfies P(z ≥ c) = 0.55 is approximately -0.126.

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To determine the rate at which the angle θ, between the ladder and the ground is changing, we need to establish a relationship between the angle θ and the given variables.

Let's assume the ladder is leaning against a wall, forming a right triangle with the ground. The ladder acts as the hypotenuse, and the angle θ is the angle opposite to the height of the wall.

Given that the length of the ladder is decreasing at a constant rate of 2 ft/s, we can express this as dh/dt = -2 ft/s, where h represents the height of the wall.

Using trigonometry, we know that sin θ = h/l, where l represents the length of the ladder. Taking the derivative of this equation with respect to time t, we get:

d/dt(sin θ) = d/dt(h/l)

Differentiating both sides using the chain rule, we have:

cos θ * dθ/dt = (dl/dt * h - dh/dt * l) / l²

Since dl/dt is given as -2 ft/s and dh/dt is given as -2 ft/s, we can substitute these values into the equation:

cos θ * dθ/dt = (-2 * h - (-2) * l) / l²

Simplifying further:

cos θ * dθ/dt = (-2h + 2l) / l²

Now, to find the rate at which the angle θ is changing (dθ/dt), we need to know the values of h and l at a specific point in time. Without additional information or specific values for h and l, we cannot determine the exact rate at which θ is changing.

In summary, the rate at which the angle θ is changing (dθ/dt) depends on the specific values of h and l at a given time.

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In this case, I will consider the relationship between a person's age and their income. I believe that income is more likely to have a higher standard deviation compared to age.

1. Economic Factors: Income is influenced by economic factors such as job market conditions, economic growth, and industry trends. These factors can fluctuate over time, leading to variations in income levels. On the other hand, age progresses in a more predictable manner.

2. Career Development: Income is strongly influenced by career development, including promotions, job changes, and salary negotiations. These factors introduce a level of unpredictability, as individuals may experience significant income changes at different stages of their careers. Age, although related to career progression, follows a relatively more predictable pattern.

3. Individual Choices: Income can also be influenced by individual choices such as entrepreneurship, investment decisions, and career changes. These choices introduce a higher level of variability as they depend on personal circumstances, risk appetite, and market conditions. Age, in contrast, progresses in a more linear and predictable manner.

Considering these reasons, it is reasonable to expect that income would have a higher standard deviation compared to age. Income is influenced by various external and personal factors that can result in significant fluctuations, making it less predictable compared to the relatively more stable progression of age.

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Answer:

C. 14%

Step-by-step explanation:

We know that Dallas's wage increased from $9 to $10.25.

Let's say the percent increase is x. Then we write the expression:

9 + x * 9 = 10.25

Divide by 9 from both sides:

1 + x = 10.25 / 9 ≈ 1.14

Subtract 1 from both sides:

x = 1.14 - 1 = 0.14

Since x is a percent, that means x = k/100, where k is an integer. So we have:

x = k/100 = 0.14

Multiply both sides by 100:

k = 0.14 * 100 = 14%

The answer is thus C.

~ an aesthetics lover

Answer:

Step-by-step explanation:

\(Original\:price = \$9\\New\:price =\$10.25\\\\Increase = 10.25-9\\Increase = 1.25\\\\Increase \: \% = \frac{Increase}{Original \:price} \:\times 100\\\\= \frac{1.25}{9} \times 100\\\\= \frac{125}{9}\\ \\= 13.888\\= 14\%\)

Given the function `y = (x-6) / (x^2 + 5x + 6)`, let's identify the vertical asymptotes and holes: Factoring the denominator, we get`(x^2 + 5x + 6) = (x+2)(x+3)`So, `y = (x-6) / (x+2)(x+3)`

The vertical asymptotes of the function are the roots of the denominator. Thus, the vertical asymptotes of the function are `x = -2` and `x = -3`.Now, we'll look for the holes in the function. A hole is a point where the function is undefined but can be simplified by canceling common factors.

In the given function, we notice that the numerator `(x-6)` and the denominator `(x+2)(x+3)` have a common factor of `(x-6)`. Thus, there is a hole at `x = 6`.We can cancel `(x-6)` from both numerator and denominator to obtain the simplified function `y = 1 / (x+3)`.Therefore, the vertical asymptotes are `x = -2` and `x = -3`, and there is a hole at `x = 6`.

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Answer:

1xxx double answer po

Step-by-step explanation:

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a. The probability density function is f(x) = 1 for 0 ≤ x ≤ 1 and f(x) = 0 elsewhere. b. The probability of generating a random number between 0.25 and 0.75 is 0.5 (50%). c. The probability of generating a random number ≤ 0.3 is 0.3 (30%). d. The probability of generating a random number > 0.7 is 0.3 (30%).

To determine the probability density function (pdf) for the given function, we need to calculate the integral of the function over its entire domain and normalize it so that the total area under the curve is equal to 1.

a. Probability Density Function (pdf):

For 0 ≤ x ≤ 1, f(x) = 10, and elsewhere, f(x) = 0.

To find the pdf, we need to calculate the integral of f(x) over its domain [0, 1]:

∫[0,1] f(x) dx = ∫[0,1] 10 dx = 10x ∣[0,1] = 10(1) - 10(0) = 10

To normalize the pdf, we divide each value by the total area:

f(x) = 10/10 = 1 for 0 ≤ x ≤ 1

f(x) = 0 elsewhere

Therefore, the pdf is:

f(x) = 1 for 0 ≤ x ≤ 1

f(x) = 0 elsewhere

b. Probability of generating a random number between 0.25 and 0.75:

To calculate the probability of generating a random number between 0.25 and 0.75, we need to calculate the integral of the pdf over this range and normalize it:

P(0.25 ≤ x ≤ 0.75) = ∫[0.25,0.75] f(x) dx

Since the pdf is constant (equal to 1) over this range, the probability is simply the width of the range:

P(0.25 ≤ x ≤ 0.75) = 0.75 - 0.25 = 0.5

Therefore, the probability of generating a random number between 0.25 and 0.75 is 0.5 (or 50%).

c. Probability of generating a random number ≤ 0.3:

To calculate the probability of generating a random number with a value less than or equal to 0.3, we need to calculate the integral of the pdf over the range [0, 0.3]:

P(x ≤ 0.3) = ∫[0,0.3] f(x) dx = ∫[0,0.3] 1 dx = x ∣[0,0.3] = 0.3 - 0 = 0.3

Therefore, the probability of generating a random number ≤ 0.3 is 0.3 (or 30%).

d. Probability of generating a random number > 0.7:

To calculate the probability of generating a random number with a value greater than 0.7, we need to calculate the integral of the pdf over the range (0.7, 1]:

P(x > 0.7) = ∫[0.7,1] f(x) dx = ∫[0.7,1] 1 dx = x ∣[0.7,1] = 1 - 0.7 = 0.3

Therefore, the probability of generating a random number > 0.7 is 0.3 (or 30%).

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--The given question is incomplete, the complete question is given below " f(x)={10​ for 0≤x≤1 elsewhere ​ a. Select the probability density function. b. What is the probability of generating a random number between 0.25 and 0.75 (to 1 decimal place)? c. What is the probability of generating a random number with a value less than or equal to 0.3 (to 1 decimal place)? d. What is the probability of generating a random number with a value greater than 0.7 (to 1 decimal place)?  "--

Answer:

12.2 or 12 2/9

Step-by-step explanation:

You set them equal to each other and solve

Answer:

x = 12

Step-by-step explanation:

We know that LM and RS are the same because of they have the same mark, we can make a algebraic equation:

9x + 27 = 135

9x = 108

x = 12

Step-by-step explanation:

Yes. The cube root of a negative number will be negative.

For example, (-2)^3 = -8. The cube root of -8 is -2.

Answer:

Yes, it would be negative

Step-by-step explanation:

Yes, the cube root of a negative number can be found without using imaginary numbers to represent it.

The cube of a number is that number multiplied by itself 3 times so:

a^3 = a*a*a

if "a" is negative then the cube of "a" will be negative. Hence the cube root of a negative number will be negative.

The measurement of BC in the given figure is 4√2.

Given is figure we need to find the measurement of BC,

∠GBC = ∠CDF = 45° [alternate angles]

So, in triangle DCF,

Cos 45° = DF/DC

1/√2 = DF/12√2

DF = 12

Now we see that the triangles DCF and BCG are similar triangles by AA rule,

So, according to the definition of similar triangles,

DC/BC = DF/BG

12√2/BC = 12/(7-3)

12√2/BC = 12/4

12√2/BC = 3

3BC = 12√2

BC = 4√2

Alternatively, you can find the value of BC, using the trigonometric ratios in triangle GBC,

Cos 45° = GB/BC

GB = 7-3 = 4

Therefore,

Cos 45° = 4/BC

1/√2 = 4/BC

BC = 4√2

Hence the measurement of BC in the given figure is 4√2.

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In the statistics the type 1 error means rejection of the null hypothesis in the case of when it is actually true.

In the field of statistics,

Type 1 error represents that there is a rejection of the Null hypothesis in the case when it is actually true.

This implies that the concluding results are actually statistically significant.

But in reality the result is due to unrelated factors or purely by coincidence or chance.

The risk representing the taking of this error as significant level alpha with some value.

Therefore, the type one error in statistics represents that rejection of Null hypothesis.

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Answer:

sorry... but the image is all black

I cant see anything

Answer:

-(5x+8)(x - 3)

Step-by-step explanation:

add and subtract second term to expression and factor using grouping

The number α= 1+ √(−3) is not algebraic over Q as there is no non-zero polynomial with rational coefficients that has α as a root.

To show that α= 1+ √(−3)  is algebraic over Q (the field of rational numbers), we need to demonstrate that there exists a non-zero polynomial with rational coefficients such that α is a root of that polynomial.

Let's consider the polynomial f(x)=x² −2x+4. We will show that f(α)=0, which implies that α is a root of the polynomial and hence algebraic over Q.

Substituting α into the polynomial

f(α)=(α)² −2(α)+4.

Now, let's evaluate each term:

α² = (1 + √(-3))² = 1 + 2√(-3) -3 = -1 + 2√(-3)

-2α = -2(1+ √(-3)) = -2 -2√(-3)

Plugging these values back into the expression:

f(α)=(−1+2 √(−3)) −2−2 √(−3) +4=−3+4 = 1.

Since f(α)=1 ≠ 0, the polynomial f(x) is not the desired polynomial with α as a root.

Therefore, α=1+ √(−3)  is not algebraic over Q.

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Two pyramids are similar, so ratio of the corresponding sides are equal.

Determine the height of large pyramid.

The formula for the volume of pyramid is,

Here, A is base area of pyramid.

Determine the volume of pyramid.

So answer is V = 8533.3 inches cube.

The length of the rectangle is 19 cm.

The formula for the area of a rectangle,

Area = Length x Width

Given that the area is 336 cm squared.

So, we can set up an equation,

⇒ 336 = (w + 5)w

where w represents the width of the rectangle.

Expanding this equation,

⇒ 336 = w² + 5w

Moving all terms to one side:

⇒ w² + 5w - 336 = 0

This is a quadratic equation that we can solve using the quadratic formula,

⇒ w = (-5 ± √(5² - 4(1)(-336))) / (2(1))

⇒ w = (-5 ± 23) / 2

We'll take the positive value,

⇒ w = 14

So, the width of the rectangle is 14 cm.

We also know that the length is 5 cm more than the width,

Therefore,

⇒ l = w + 5

⇒ l = 14 + 5

⇒ l = 19

Therefore, the length of the rectangle is 19 cm.

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That's a Congruent Triangle question.

The first thing that we should to analize is it: What figure is EFGH? The question say for us that \(\overline{EF} \cong \overline{GH}\) and \(\overline{EH} \cong \overline{GF}\), therefore, EFGH is a parallelogram because its parallel sides are congruents (equals).

Now, we should to proof that \(\triangle EFH \cong \triangle GHF\). The simbol "≅" means congruence, that is, \(\triangle EFH \cong \triangle GHF\) means that the triangles EFH and GHF are equals.

Let's proof:

\(\overline{HF}\) is a diagonal of the parallelogram EFGH. When we have a diagonal in a parallelogram, the opposite angles are congruents (look at the picture: the blue angles are congruent and the red angles are congruents too). Therefore, \(E\hat{F}H \cong F\hat{H}G\) and \(E\hat{H}F \cong H\hat{F}G\).

Both triangle has a comum side: the diagonal \(\overline{HF}\). The diagonal \(\overline{HF}\) is between two angles that we know that are congruents, Therefore, by the case ASA (Angle, Side, Angle), we proof that \(\triangle EFH \cong \triangle GHF\).