Question

The data set shows the ages of the members of a book club. What is the shape of the distribution of this data set?

19, 21, 18, 19, 16, 21, 20, 17, 16, 17, 20, 18.

Answers: symmetrical, uniform, skewed to the left, skewed to the right.

Answer 1

Define the data in 6 bins (histogram) as shown below.

x Count
---- ---------
16 2
17 2
18 2
19 2
20 2
21 2

Graph the data set to show the histogram shown below.
It is clear that the data s uniformly distributed.

Answer: uniform