Answer: μ = Population mean = 12; σ^{2} = Population variance = 1274.666667

Here is how:

What is the mean and variance of the following population.

24

74

21

-25

13

-35

Make sure your calculator is in SD mode. Clear the statistical memories by pressing [SHIFT] [AC] [=]

Enter Data

[2] [4] [M+]

[7] [4] [M+]

[2] [1] [M+]

[(-)] [2] [5] [M+]

[1] [3] [M+]

[(-)] [3] [5] [M+]

Find Mean:

[SHIFT] [1] [=]

Your display should read 12

Find Variance based on entire population:

[SHIFT] [2] [=] to get the population standard deviation (35**.**70247424)

[X^{2}] [=] to get the population variance (1274**.**666667)