Suggested answer to exercise: Standard deviation of FEV1 data, 1

Question 1: Using SPSS, find the mean, standard deviation, and variance of FEV,

Suggested answer

We can do this is several ways. For example, we can choose Descriptive Statistics, Descriptives, choose variable FEV1, Options. We then click Mean, Std deviation, Variance, Continue, OK.

This is what we get:

                                                     Descriptive Statistics

We can get the same information from Descriptive Statistics, Frequencies, choose variable FEV1, Statistics. We then click Mean, Std deviation, Variance, Continue, OK.

This produces:

                                     Statistics

FEV1 (litre)

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Last updated: 16 October, 2006.

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