Answer: μ = Population mean = 12; σ2 = 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 [2ndF] [DEL]
Enter Data
[2] [4] [M+]
[7] [4] [M+]
[2] [1] [M+]
[+/-] [2] [5] [M+]
[1] [3] [M+]
[+/-] [3] [5] [M+]
Find Mean:
[
RCL] [4]Your display should read 12
Find Variance based on entire population:
[
RCL] [6] to get the population standard deviation (35.70247424)[
X2] [=] to get the population variance (1274.666667) Click here to return to calculator section