The purpose of this assignment is to learn to compute key numerical measures for descriptive statistics.

- The following data set is about the number of times a sample of 20 families dined out last week: 6 1 5 3 7 3 0 3 1 3 4 1 2 4 1 0 5 6 3 1
- Compute the mean and median.
- Compute the first and third quartiles.
- Compute the variance and standard deviation.
- Compute Z score for each number.
- Do the data contain outliers?

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