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Mkey [24]
2 years ago
6

Three randomly selected households are surveyed. the numbers of people in the households are 1,3,8 assume that samples of size n

=2 are randomly selelcted with replacement from the population of 1,3,8. Listed below are the nine different sample 3,5 3,5 3,10,5,3 5,5 5,10 10,3 10,5 10,10 find the variance of each of the nine samples then summerize the sampling distribution of the variances in the format of a table representing the probability distribution of the distinct variance values
Mathematics
1 answer:
uysha [10]2 years ago
4 0

The estimator sample proportion is mathematically unbiased

<h3>What is the estimator sample proportion?</h3>

Generally, the equation for is  mathematically given as

Population sample \mu=1.3

The sample to sample proprotion table will have

first column= 3,5 3,5 3,10,5,3 5,5 5,10 10,3 10,5 10,10

Second coumn= 0,0,0.5,0,0,0.5,05,0.5, total 3

The probability distribution of the distinct variance values table will have

p row=0,0.5,1, Total

probability row= 4/9, 4/9, 1/9, 1

In conclusion, The mean sample

x=3/9

x=1.3

Where

population sample \mu=1.3

\mu= x

Therefore the estimator sample proportion is unbiased for population mean

Read more about probability

brainly.com/question/11234923

#SPJ1

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Answer:

Circle

Step-by-step explanation:

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Hope that was helpful.Thank you!!!

7 0
3 years ago
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Step-by-step explanation:

6 0
3 years ago
Engineers want to design brakes that will reduce stopping distances by 10%. How would this change the equation relating speed s,
AlekseyPX
For the answer to the question above,  we will use this formula to solve this problem
<span>d = kv^2 </span>

<span>plugging in, </span>
<span>4.2 = k*10^2 </span>
<span>k = 0.042 </span>

<span>d = 0.042v^2 </span>

<span>the revoised equation will be </span>
<span>d = 0.9*0.042v^2 , i.e. </span>

<span>d = 0.0378v^2 

I hope my answer helped you</span>
8 0
4 years ago
Select the correct answer from each drop-down menu. Complete the statements about these similar pyramids. Two square pyramids A
Scrat [10]

The ratio of the heights of these pyramids is 3 : 1, the ratio of the base areas is 9 : 1 and the ratio of the volumes is 27 : 1.

<h3>What is ratio?</h3>

Ratio can be defined as a mathematical expression which denotes the proportion of two (2) or more physical quantities to one another and the total quantities.

The ratio of the heights of these pyramids is given by:

Ratio = Height of pyramid A : Height of pyramid B

Ratio = (3V/lw) : (V/lw)

Ratio = 3 : 1.

The ratio of the base areas of these pyramids is given by:

Ratio = Base area of pyramid A : Base area of pyramid B

Ratio = (3a)² : a²

Ratio = 9a : a

Ratio = 9 : 1.

The ratio of the volumes of these pyramids is given by:

Ratio = Volume of pyramid A : Volume of pyramid B

Ratio = (3l × 3w × 3h)/3 : (l × w × h)/3

Ratio = 27 : 1.

Read more on pyramid here: brainly.com/question/16315790

#SPJ1

8 0
3 years ago
the weekly salaries for 7 employees of a small business are given below 632, 750, 829, 839, 841, 881, 954 suppose the 632 salary
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I don't understand your question.. Is this multiple choice or something else?
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