Question

Unit sales for new product ABC have varied in the first seven months of this year...

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.

Math   Statistics-And-Probability   
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Answer #1

Given that,

Months Unit sales (x) ( xi - )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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