A population consists of the three numbers (3,5,7). Make a table and compute for the following:

Question

A population consists of the three numbers (3,5,7). Make a table and compute for the following:

A population consists of the three numbers (3,5,7). Make a table and compute for the following:

(a) Population mean (is 5 correct?)

(b) Population variance (is 2 correct?)

(c) Population standard deviation. Complete the table and solve for what is asked.

Is this correct?

Observation	X	X-μ	(X -μ)2	P(X)
1	3	-2	4	1/5
2	5	0	0	1/3
3	7	2	4	7/15
		0	8	1

or

this one

Observation	X	X-μ	(X -μ)2	P(X)
1	3	-2	4	1/3
2	5	0	0	1/3
3	7	2	4	1/3
		0	8	1

Answer 1

mean = 5

variance = 8/3

standard deviation = square root of 8/3

2nd table is correct