Class ages

Mean and Standard Deviation for 5 Learning Teams in a RES 351 Class.

Class Average

Team1Team2Team3Team4Team5

2435313544

3134244427

3024273125

4722244227

29242121

25

Mean32.228.7526.53830.7531.24

Sample Stand Deviation8.70057469376.70198975433.08220700159.23579991128.84307638782.2907029197

Skewness1.6734648219-0.05730306091.4514548206-0.70143484081.7899477294-0.4942367863

Note that you go to "Insert" then "Function" then "Average"

to get the formula for the mean.

For the team standard deviations, do the same thing and then use the STDEV function (standard deviation for a sample)

For the class total standard deviation, use the STDEVP function, which is for a population.

Now, try doing the Skewness calculation on your own in the yellow highlighted area.

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