Unit sales for new product ABC have varied in the first seven months of this year as follows:
Month | Jan | Feb | Mar | Apr | May | Jun | Jul |
---|---|---|---|---|---|---|---|
Unit Sales | 132 | 284 | 271 | 469 | 143 | 175 | 230 |
What is the (population) Pearson's coefficient of skewness of the data?
Please round your answer to the nearest hundredth.
Note that the correct answer will be evaluated based on the full-precision result you would obtain using Excel.
Given that,
Months | Unit sales (x) | ( x_{i} - )^{2} | |
Jan | 132 | 12416.3329 | |
Feb | 284 | 1646.038498 | |
March | 271 | 760.182098 | |
April | 469 | 50882.4565 | |
May | 143 | 10085.9037 | |
June | 175 | 4682.473298 | |
July | 230 | 180.327298 | |
Median = 230,
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