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

Sales 295 218 374 365 281 234 304

What is the (population) standard deviation of the data?

Math   Statistics-And-Probability   
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Answer #1

We have given data as -

Month Jan Feb Mar Apr May Jun Jul

Sales 295 218 374 365 281 234 304

We have asked to find the Population standard deviation of the given data.

We know that-

Population standard deviation   = sqrt [(sum( x - mean)2 )/ n]

Hence we get -

Population standard deviation = 54.85 (Rounded to two decimal places)

Hope this will help you. Thank you :)

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