A company maintains three offices in a region, each staffed by two employees. Information concerning yearly salaries (1000’s of dollars) is as follows: Office 112233 Employee 123456 Salary 29.7 33.6 30.2 33.6 25.8 29.7 a. Suppose two of these employees are randomly selected from among the six (without replacement). Determine the sampling distribution of the sample mean salary X. b. Suppose one of the three offices is randomly selected. Let X1 and X2 denote the salaries of the two employees. Determine the sampling distribution of X. c. How does E(X) from parts (a) and (b) compare to the population mean salary m?

answer:

it is general formula that is used to write value to its excet position

a11 a12 a13

a21 a22 a23

it is the example of order 2 by 3 matrix in this

a11 means value occur in 1 st row 1st column

a12 means value occurs in 1st row 2nd column

a13 means value occur in 1st row and 3rd column

a21 means value occurs in 2nd row and 1st column

a22 means value occurs in 2nd row and in 2nd column

a23 means value occurs in 2nd row and in 3rd column

alright well the answers to your question is

2xy/9 hope this have a nice day : )

step-by-step explanation:

answer: its the third option.

step-by-step explanation:

i just took the test.