Question

In: Statistics and Probability

What is the variance for the following population of scores? Scores: 5, 2, 5, 4

What is the variance for the following population of scores?

Scores: 5, 2, 5, 4

Solutions

Expert Solution

mean =

x         x -                     (x - )2

5           1                           1

2            - 2                       4

5              1                        1

4               0                        0

-------------------------------------------

Total                                   6

So

Variance =

So,

Answer is:

1.5


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