Homework Answers
| Toddler | Number of words (x) | x-u | (x-u)^2 |
| A | 17 | -25 | 625 |
| B | 48 | 6 | 36 |
| C | 39 | -3 | 9 |
| D | 45 | 3 | 9 |
| E | 61 | 19 | 361 |
| Mean(u) | 42 |
| Standard deviation (σ) | 14.42221 |
| variance (σ^2) | 208 |
Using excel
Population Standard deviation= "Stdev.p(select range of number of woods)
Population variance= "VAR.P(select range of number of woods)
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