Exercise

(not so good) Estimations of the mean and sd

Using the data gender again and assuming that the variable Weight follows a Gaussian distribution, we can estimate the mean and the standard deviation following the previous estimation procedure. The idea is to realize that this procedure does not always work because the data can be formed by more than one distribution.

Instructions 1/2

XP

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Estimate the mean of Weight and save the result into the object mean_estimate. To pull out the variable, you can use the dplyr function pull.
Estimate the standard deviation of Weight and save the result in sd_estimate.