20. Which of the following is described as the quotient of the population variance and the sample size n? A. mean of the sampling distribution of sample mean B. variance of the sampling distribution of the sample mean C. standard deviation of the sampling distribution of the sample mean D. average deviation of the sampling distribution of the sample mean 21. Which of the following is the notation used for the variance of the sampling distribution of the sample mean? А. И C. σ2 B. o2 D. 22. Which of the following is the formula used to determine the variance of the sampling distribution of the sample mean? 1-n C. o = E [(X) • (X – 4)²] D. o =E [() • (X – 4)²] A.σ= vn V N-1 B.o = N+1 s2 2 В. О-

Q: Simplify. 10m n² 5mn4

A: To simplify the below expression.

Q: Identify a pattern in the list of numbers. Then use this pattern to find the next number. 3,-12, 48,…

A:

Q: Simplify. 4

A: Power rule:   The power rules says that,

Q: Find the rank of A 1 2 3 A = 149 1 8 27 02 0 3 01

A: Rank: The rank of an m×n matrix is r if the number of linearly independent columns of the matrix is…

Q: 2. Plot the point, (4,) in polar coordinates. Find other polar coordinates (r, 0) of the point for…

A:

Q: Simplify. 54 A_ng 3 6 9v y+15v

A: We have to simplify the expression : 3u5v4 / ( 9v3y6 + 15v5 ).

Q: +2 8. 1- 74

A:

Q: Find BA. A= BA= ☐ 3 2 || 7 B -6-3 3 0

A:

Q: Subtract the signed numbers by adding the opposite of the second number to the first number.   2−38

A: The given expression is 2-38.

Q: Match these values of r with the accompanying scatterplots: 0.687, - 0.687, 1, - 1, and - 0.374. |…

A: Match scatter plots to r values.

Q: -2 degrees c and 15 degrees c. What is the new temperature

A: We will use concept of average.

Q: 6. Evaluate. (-125) } a. 25 b. -25 C. 5 d. -5

A:

Q: R S 16 T. 15 30 Q RS %3D P.

A: Given : PS is parallel to QR TP = 15TS = 16PQ = 30

Q: Describe the pattern. Then write the next 3 numbers. 1, 3, 4, 7, 11, 18,

A:

Q: Change .4 to a fraction.

A: We need to change 0.4 into a fraction

Q: Compute the following: -6 9 -87 7 -8 -1 3 4 + -5 -6 6 -8 1 8 4

A: Let us consider two matrix A and B Sum of the matrix exists if matrices are of same order Sum of…

Q: 2.6+3.2

A: