In general, as the sample size increases, the probability of observing a particular outcome becomes more precise and accurate.
This is because larger sample sizes provide more information about the population being studied, and therefore reduce the amount of sampling error or variability in the data.
In the context of probability calculations, the sample size can affect the accuracy and precision of the estimated probabilities. Generally speaking, larger sample sizes will provide more accurate and precise estimates of probabilities, while smaller sample sizes may result in less accurate or more variable estimates.
Therefore, if the sample size were 15 rather than 85, the estimated probabilities may be less accurate or more variable than if a larger sample size were used. The degree to which this affects the probability calculation will depend on the specific details of the problem being considered, including the nature of the population, the sampling method used, and the specific question being asked.
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PLEASE HELP URGENT** YOU WILL BE REWARDED BRAINLIEST
Louisa found the average of her test grades using the expression
Answer:
numerator is a binomial
Step-by-step explanation:
What is the usefulness of Cluster Analysis? What is Hierarchical
Clustering? Give examples.
Cluster analysis is a valuable tool in data analysis that helps identify hidden patterns and group similar objects or data points.
It is useful in various fields, such as market research, image analysis, customer segmentation, and anomaly detection. By clustering data, we can gain insights, make predictions, and improve decision-making. Hierarchical clustering is a specific approach to cluster analysis. It organizes data points into a hierarchy of clusters, where each cluster can contain subclusters. This method allows for a hierarchical structure that captures different levels of similarity or dissimilarity between data points.
For example, in customer segmentation, hierarchical clustering can group customers based on similar attributes like demographics, purchase history, and behavior. In image analysis, it can be used to segment images into meaningful regions or objects based on their visual characteristics. Hierarchical clustering offers a flexible and interpretable way to analyze complex datasets and discover underlying structures.
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Marian Plunket owns her own business and is considering an investment. if she undertakes the investment, it will pay $28,000 at the end of each of the new 3 years. the opportunity requires an initial investment of $7,000 plus an additional investment at the end of the second year of $35,000. what is the NPV of this opportunity if the interest rate is 8% per year? Should Marian take it?
The NPV is positive, it is worth taking the Investment.
Net Present Value (NPV) is an assessment method that determines the attractiveness of an investment. It is a technique that determines whether an investment has a positive or negative present value.
This method involves determining the future cash inflows and outflows and adjusting them to their present value. This helps determine the profitability of the investment, taking into account the time value of money and inflation.The formula for calculating NPV is:
NPV = Σ [CFt / (1 + r)t] – CIWhere CFt = the expected cash flow in period t, r = the discount rate, and CI = the initial investment.
The given problem can be solved by using the following steps:
Calculate the present value (PV) of the expected cash inflows:
Year 1: $28,000 / (1 + 0.08)¹ = $25,925.93Year 2: $28,000 / (1 + 0.08)² = $24,009.11Year 3: $28,000 / (1 + 0.08)³ = $22,173.78Total PV = $72,108.82
Calculate the PV of the initial investment: CI = $7,000 / (1 + 0.08)¹ + $35,000 / (1 + 0.08)²CI = $37,287.43Calculate the NPV by subtracting the initial investment from the total PV: NPV = $72,108.82 – $37,287.43 = $34,821.39
Since the NPV is positive, it is worth taking the investment.
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a 10-unit vector at 60° from the vertical has a vertical component with a magnitude
Answer:
i hop this halp
Step-by-step explanation:
less than 10 units.
I want the answer please
The prove of given limit lim θ → 0 ( sin θ / θ ) = 1 is shown in below.
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
We have to given that;
⇒ lim θ → 0 ( sin θ / θ ) = 1
Here, The form of given limit is 0/0, so we can apply the L - Hospital Rule.
⇒ lim θ → 0 ( sin θ / θ ) = 1
Take LHS;
⇒ lim θ → 0 ( d/dθ (sin θ)/ dθ/dθ )
⇒ lim θ → 0 ( cos θ / 1 )
⇒ ( cos 0 )
⇒ 1
⇒ RHS
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we desire the residuals in our model to have which probability distribution? select answer from the options below normal binomial poisson
The distribution that the residuals in our model to follow is equals to the normal probability distribution. So, option(a).
Because residuals are defined as the difference between any data point and the regression line, they are sometimes called "errors". An error in this context does not mean that there is anything wrong with the analysis. In other words, the residual is the error that is not described by the regression line. The residue(s) can also be expressed by "e". The formula is written as, Residual = Observed value – predicted value or
\(e = y – \hat y \).
In order to draw valid conclusions from your regression, the regression residuals should follow a normal distribution. The residuals are simply the error terms or differences between the observed value of the dependent variable and the predicted value. Therefore, the residuals should have a normal distribution.
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Complete question:
we desire the residuals in our model to have which probability distribution? select answer from the options below
a) normal
b) binomial
c) poisson
) How is the Domain for the function f(x) = (x restricted?
1..Tim is playing board games that goes from -50 to 50, Tim is on the space marked -2 and spins a 12 to move 12 spaces. What number box will Tim be on after the spin?
2..When would the answer to 3+x be locaded to the right of 3?
3..When would the answer to 3+x be locaded to the left of 3?
Answer:
1. 10
2. if x was positive
3. if x was negative
Step-by-step explanation:
1. he starts on -2. so -2 + 12 is 10, so he would be on the space number 10.
2. if he moved to the right, it would mean you added something to 3. so, if x was positive, then it would move to the right.
3. if he moved to the left, it would mean that you subtracted something from 3. so, if x was negative, then it would move to the left.
katlin bought 14 pencils, it costs her $3.50. how much did each pencil cost?
Answer: 0.25$ or a quarter
Step-by-step explanation:
Katlin bought 14 pencils, which cost her $3.50. So all you have to do is divide the amount ($) by the number of pencils.
3.50/14 = 0.25$
3.50 divided by 14
Each pencil cost a quarter
(2x10)-4 x (4x10)-3
40 is what percent of 800?
Answer:
40/100 × 800
council the zeros
40× 8/1
320
Answer:
20%
Step-by-step explanation:
8/40 =x%/100%
800%/40=40x%/40
20=x%
x=20%
anyone who knows please help!!!!
i tried to solve this on my own but it's not happening rip
Answer:
13.5
Step-by-step explanation:
the answer is 13.5, because you do the proportionate equations of 6/4 = x/9, and then you cross multiply to get 4x=54, and then you isolate x, so the answer is 13.5
NOT SURE HOW TO DO IT LEAST TO GREATEST!
Answer:
Its C
Step-by-step explanation:
Im not sure if its correct but heres the best i explination I got!!
Ok so first negatives would be least so ignore 13 and seven
now since theres two that could be greater than the other ( -11 3/4 or -13) next would be -7 after u and the 7 to 13! so ur best one is C since D and E make -11 behind 7 or scrambled in greatest
Does anyone mind helping me?
Answer:
Do 2750/3162.50 then that's your answer
Step-by-step explanation:
Marcos reads 3 1/2 books in 1 3/4 weeks. How many does he read in 1 week?
Answer:
2 books
Step-by-step explanation:
3 1/2 ÷ 1 3/4
Convert the mixed numbers to improper fractions.
7/2 ÷ 7/4
Keep Change Flip
7/2 × 4/7
28/14
2 books
Write the following as an algebraic expression. Then simplify. the total amount of money (in cents) in x quarters, (x+3) dimes, and 2x nickels.
Answer:(x+3)=2x
Step-by-step explanation:
CAN AN EXPERT< ACE< MODERATOR OR GENIUS HELPP ME WITT THIS PLSSSSSSSSSSSSSS!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
3x+2
Step-by-step explanation:
Please help with analytical geometry
1. The gradient of AB is 0.5
2. The gradient of BC is tan θ
What is gradient of a line?The gradient is the amount of vertical movement for each unit of horizontal movement to the right.
The gradient can also be called the slope and it expressed as;
S = y2-y1)/x2 -x1
1. The gradient of line AB
= 0-5)/-8-2
= -5/-10
= 1/2
therefore the gradient of AB is 1/2
2. using analytical method , the gradient of BC can be found by finding the value of θ
tan θ= gradient.
line AB = √ -10² + 5²
AB = √ 125
AB = 11.2
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Evaluate the following sin6A-cos6A
On solving the provided question we can say that the value of trigonometry value is - \((sin^2x - cos^2x )( 1- sin^2xcos^x)\\\)
what is trigonometry?The area of mathematics known as trigonometry examines the correlation between triangle side lengths and angles. The area first appeared in the Hellenistic era, around the third century BC. from the use of geometry in astronomical study. The area of mathematics known as exact methods deals with specific trigonometric functions and how they might be used in calculations. There are six popular trigonometric functions in trigonometry. Sine, cosine, tangent, cotangent, secant, and cosecant are their respective names and acronyms (csc). Studying the characteristics of triangles, particularly right triangles, is called trigonometry. The study of geometry, however, is the characteristics of all geometric figures.
\(sin^6 x - cos^6x\\(sin^3x)^2 - (cos^3x)^2\\(sin x - cosx)(sinx + cosx)(1 + sinx cosx)(1 - sinx cosx)\\(sin^2x - cos^2x )( 1- sin^2xcos^x)\\\)
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Compare the coefficient of determination and coefficient of
correlation true or false
If a variable x does not depend on a variable y, both
coefficients are equal to zero.
The determination coeffici
False. the statement "If a variable x does not depend on a variable y, both coefficients are equal to zero" is false.
The coefficient of determination (R-squared) and the coefficient of correlation (Pearson's correlation coefficient) are related but distinct measures.
The coefficient of determination, denoted as R², measures the proportion of the variance in the dependent variable (y) that can be explained by the independent variable(s) (x). It ranges from 0 to 1, where a value of 0 indicates that the independent variable(s) do not explain any of the variance in the dependent variable, and a value of 1 indicates that the independent variable(s) completely explain the variance in the dependent variable.
On the other hand, the coefficient of correlation, denoted as r, measures the strength and direction of the linear relationship between two variables (x and y). It also ranges from -1 to 1, where a value of -1 indicates a perfect negative linear relationship, a value of 0 indicates no linear relationship, and a value of 1 indicates a perfect positive linear relationship.
If a variable x does not depend on variable y, it means there is no linear relationship between the two variables. In this case, the coefficient of correlation (r) would be 0, indicating no linear relationship. However, the coefficient of determination (R²) could still be non-zero if there are other independent variables that explain the variance in the dependent variable y.
Therefore, the statement "If a variable x does not depend on a variable y, both coefficients are equal to zero" is false.
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If 5 men can repair 10 chairs in 3 hours, then how many men are required to repair 20 chairs in 3 hours.
HELP ME I DONT KNOW WHAT IT IS
Answer: You need 10 men to repair 20 chairs in 3 hours.
Explanation:
If 5 men can repair 10 chairs in 3 hours.
You have to figure out how many chairs one man repairs.
So you take the 10 chairs and divide it by the 5 men, which gives you 2
1 man will repair 2 chairs
Then take the 20 chairs and divide it by 2 chairs and it will give you how many men you will need. Which is 10 men
Hope this helps<3
What is the quotient of -3/7and -1/3? -1 1/8 -1/8 1/8 1 1/8
Answer:
1 2/7
Step-by-step explanation:
Quotient means division
-3/7 ÷-1/3
Copy dot flip
-3/7 * -3/1
9/7
7/7 + 2/7
1 2/7
0.3 x 0.9
Help Please!! WIll mark Brainliest!
Answer:
0.3 x 0.9=0.27
Step-by-step explanation:
Hope this answer helps you:)
Answer:
9 x 3 = 27
0.9 x 0.7 = 0.27
Step-by-step explanation:
Just add a decimal point infront of 27 or the other numbers.
From midnight to 10:00 am, the temperature dropped
1.75
1.75°C each hour. If the temperature at midnight was
12
12°C, what was the temperature at 10:00 am?
Please hurry- I feel like I’m going to cry.
The temperature at 10:00 am is -5.5°C, since the temperature at 12:00 am midnight, was 12°C and the temperature dropped by 1.75°C every hour.
The temperature at midnight is 12°C
The temperature is dropped by 1.75°C every hour.
We need to find the temperature at 10:00 am when the temperature is dropped by 1.75°C every hour from midnight temperature at 12°C.
The midnight is considered to be 12:00 am.
From 12:am midnight to 10:00 am we have 10 hours.
So,
Temperature drop in an hour = 1.75°C
1 hour = 1.75°C
Multiplying 10 on both sides.
10 x 1 hour = 1.75°C x 10
10 hours = 17.5°C
We see that,
The temperature drop in 10 hours is 17.5°C.
The temperature at midnight 12:00 am = 12°C
The temperature at 10:00 am = 12°C - 17.5°C
= -5.5°C
If the temperature at 12:00 am is 12°C where every hour the temperature drops by 1.75°C then the temperature at 10:00 am will be -5.5°C since there is a ten hours difference between 12:00 am to 10:00 am.
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Can anyone help fill in the blank in middle?
Answer:your answer is 9 - 54/50
Step-by-step explanation:
Which triangle congruency postulate or theorem can be used to prove that the two triangles below are congruent.
AAS
SAS
ASA
SSS
Answer:
SIDE ANGLE SIDE
Step-by-step explanation:
Because all yo have to do is see what fits.
find the solution of given expression
\( \sqrt{365 \times 4 \times 365} \)
Answer:
√{365×4×365}=√(365²×2²)=±(365×2)=±730
Answer:
\(\sqrt{365\cdot \:4\cdot \:365}=\sqrt{532900}\)
\(=\sqrt{730^2}=730\)
A flower bed is 2 meters wide and 3 meters long. What is the area of the flower bed in square feet? Round intermediate calculations and your answer to the nearest hundredth. The area of the flower bed is about 64.55 square feet.
Answer:
Area=63.96
Step-by-step explanation:
Given data
A flower bed is 2 meters wide and 3 meters long
convert to feets
1m to feet 3.28084
2m to feet x
x= 3.28084*2
x=6.5ft
3m to feet
=3.28084*3
=9.84ft
Area= 6.5*9.84
Area=63.96
Keisha's gym charges a one-time initial fee to join plus a monthly fee to maintain
membership. The graph below shows the cost of Keisha's gym membership.
select all the statements that are true about her gym membership costs.
The cost for 6 months is $120.00.
The initial fee to join the gym is $20.00.
The initial fee to join the gym is $30.00.
The gym membership fee is $20.00 per month.
The gym membership fee is $30.00 per month
Answer:
B and E
Step-by-step explanation:
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