) A random sample of 12 customers was chosen in a supermarket. The (incomplete) results for their checkout times are shown in the table below.

) A random sample of 12 customers was chosen in a supermarket. The (incomplete) results for their checkout times are shown in the table below.

(a - 4 points) Complete the frequency table

(b - 2 points) What percent of the checkout times are 10 minutes or greater?

(c - 2 points) What percent of the checkout times are between 8 and 9.9 minutes?

(d - 2 points) What percent of the checkout times are less than 7.9 minutes?