Q3(12). The data below lists the number of advanced placements courses that 12 schools offer.

5, 7, 8, 12, 3, 15, 7, 6, 4, 5, 5, 1.

1.(6) Compute the descriptive statistic for this data set: sample mean, sample median, first quartile (lower forth), third quartile(upper forth), sample variance, and sample standard deviation.

2.(3) Is there any outlier in this data? If yes, list all outliers and specify its type (extreme or mild).

3.(3) Draw the modified box plot.