Question
In: Statistics and Probability
(a) Use the Sample Variance Definition to find the variance and standard deviation of the data.
Perform each task, given the following sample data. (Round your answers to one decimal place.)
| 4 | 8 | 7 | 4 | 10 | 9 |
(a) Use the Sample Variance Definition to find the variance and standard deviation of the data.
| variance | |
| standard deviation |
(b) Use the Alternative Formula for Sample Variance to find the
variance and standard deviation of the data.
| variance | |
| standard deviation |
Solutions
Expert Solution
 |
 |
 |
| 4 | -3 | 9 |
| 8 | 1 | 1 |
| 7 | 0 | 0 |
| 4 | -3 | 9 |
| 10 | 3 | 9 |
| 9 | 2 | 4 |
 |
 |
-------------------------------------------------------------------------------------------------
 |
 |
| 4 | 16 |
| 8 | 64 |
| 7 | 49 |
| 4 | 16 |
| 10 | 100 |
| 9 | 81 |
 |
 |
orchestra answered 2 years agoRelated Solutions
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