= sample mean = 18.42635659Answer S2 = sample standard deviation = 18.05494011
and = sample mean = 18.42635659
Here is how:
What is the variance and mean of the population from which the following data was sampled:
|
Value |
Frequency |
|
27 |
102 |
|
13 |
1 |
|
0 |
7 |
|
-12 |
13 |
|
24 |
0 |
|
-39 |
6 |
Enter Data
|
Value |
; |
Frequency |
Enter |
|
[ 2] [7] |
[SHIFT] [,] |
[ 1] [0] [2] |
[ M+] |
|
[ 1] [3] |
[SHIFT] [,] |
[ 1] |
[ M+] |
|
[ 0] |
[SHIFT] [,] |
[ 7] |
[ M+] |
|
[ (-)] [1] [2] |
[SHIFT] [,] |
[ 1] [3] |
[ M+] |
|
[ 2] [4] |
[SHIFT] [,] |
[ 0] |
[ M+] |
|
[ (-)] [3] [9] |
[SHIFT] [,] |
[ 6] |
[ M+] |
Find Variance based on sample:
[
SHIFT] [3] [=] to get the sample standard deviation (18.05494011)[
X2] [=] to get the sample variance (325.9808624)Find Mean:
[
SHIFT] [1] [=]Your display should read 18.42635659
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