Question 1
Consider a sample with the following data values.
Compute the Z scores for the above five observations.
Question 2
Consider the data in the following frequency distribution. Assume the data represent a population.
Class | Frequency |
2 - 6 | 2 |
7 - 11 | 3 |
12 - 16 | 4 |
17 - 21 | 1 |
For the above data, compute the following.
a. | The mean |
b. | The variance |
c. | The standard deviation |