The following table shows the number of times Key Club students at Peconic High School went to Echo Beach last summer.
a. How many students are in the Key Club?
b. Find the mean, median, mode, range, variance, and standard deviation for the distribution. Round to the nearest tenth.
c. Millions of visitors go to Echo Beach each summer, many of them repeatedly. If the distribution of the number of visits per person last summer is normal with mean 6.2 and standard deviation 2, find the percent of visitors who went to the beach more than eight times. Round to the nearest percent.
d. Using the statistics from part c, find the percent of visitors who went to the beach between five and seven times, inclusive. Round to the nearest percent.