Three randomly selected households are surveyed. The numbers of people in the households are 2, 4, and 12. Assume that samples of size n = 2 are randomly selected with replacement from the population of 2, 4, and 12. Listed below are the nine different samples. Complete parts (a) through (c). 2,2 2,4 2,12 4,2 4,4 4,12 12,2 12,4 12,12 O ..... a. Find the variance of each of the nine samples, then summarize the sampling distribution of the variances in the format of a table representing the probability distribution of the distinct variance values. Probability (Type an integer or a fraction. Use ascending order of the sample variances.) b. Compare the population variance to the mean of the sample variances. Choose the correct answer below. A. The population variance is equal to the mean of the sample variances. B. The population variance is equal to the square of the mean of the sample variances. O C. The population variance is equal to the square root of the mean of the sample variances. c. Do the sample variances target the value of the population variance? In general, do sample variances make good estimators of population variances?

Q: If the 3rd and 13th terms of an arithmetic sequence of numbers are 7 and 27, respectively, then the…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Maxine makes 5 keychains in 20 minutes. How long will it take her to make 8 keychains? (Hint: use a…

A: It is given that Maxine makes 5 keychains in 20 minutes. It is required to find how long it will…

Q: X+2 4 +7= - x+9 X

A:

Q: I'm not sure I can read the answer correc

A: If f 'x>0 then fx is increasing.If f 'x<0 then fx is decreasing. domain of x+62-x is (−∞,2]

Q: Find the last three digits of 240 + 341 + 442.

A:

Q: 3×+5=23

A: this is a simple equation question  we will simplify by using the maths calculation rule.

Q: Translate this sentence into an equation. 105 is the product of Goran's score and 7. Use the…

A:

Q: can you explain more about the second part that you came up with -2 and 5 .  thanks

A:

Q: 1. If x is an exact measurement of a certain quantity and x0 is its approximation, the concept of…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: 922 + 6 da a + 2x + 2

A:

Q: 6. x - 4y = 16 y 2

A:

Q: This one isn't for a grade just a practice assignment from our teacher and I need help

A: Given f(1)=8

Q: The simpliest form of  a2-   -b2  /8a-8b

A:

Q: 2 6X こ

A:

Q: Your grade in a class is determined by the average of three test scores. You scored 75 and 88 on the…

A: Topic - Algebraic operations We are given the test scores of first two tests as 75 and 88. Average…

Q: Evaluate 4a + b - 12 when a = - 1 and b = 2.5

A: See the solution below:

Q: -9+b<45 can you help me with this please?

A:

Q: 2X+3=9.X=

A: Solution

Q: 14 9

A: Solution-

Q: This one was confusing thank you for your assistance

A: A snail is travelling along a straight path. the snails velocity can be modelled by v(t)=1.4ln(1+t2)…

Q: x+1.2=3.5 please simplify.

A:

Q: I was thinking of a number. 7 times that number plus 1 is the same as 9 times the number minus 9.

A: Form the equation According to the problem

Q: can you please submit on paper? this way is very confusing. I will upvote after thanks a lot

A: As per bartleby guidelines we only give first question answers. Please repost for other parts.

Q: Use the Black and Red chips model to illustrate the process of obtaining -7+4= -3 . Describe each…

A: See image below

Q: (8p² + 2p)(-2p + 7)

A: Given that: 1. (8p2+2p)(-2p+7)2. (-2x3+6x2-2x)(-3x3+5x)

Q: 7. (4x+ 12) > -24 4.

A: