A sample of 50 departing airline passengers at the main check-in counter submitted the following number of bags to be checked through to final destinations:

0 1 2 2 1 2 1 2 3 0 1 0 1 1 0 1 3 0 1 2 1 1 1 2 1 2 2 1 2 0 0 2 2 1 1 1 1 1 1 1 2 0 1 3 0 1 2 1 1 3

a. Create a bar chart with relative frequencies.

b. Comment on the pattern.

c. What proportion of passengers who check in at the main counter fail to check any bags?