You have a statistics project due in your math class. as part of the project for one hour you count how many shoppers at your favorite store are between the ages of 21 and 25. your frequency table is below. use this table to answer questions (a-c)
ages: 21,22,23,24,25
frequency: 2,5,3,7,10

a) find the mean of the data
b) find the standard deviation of the data
c) explain what the mean and standard deviation tell you about the data you collected