The National Sporting Goods Association (NSGA) conducted asurvey of the ages of individuals that purchased skateboardingfootwear. The ages of this survey are summarized in the followingpercent frequency distribution. Assume the survey was based on asample of 200 individuals.
| Age of User | Percent Frequency |
| Under 14 years old | 37 | |
| 14 to 17 years old | 27 | |
| 18 to 24 years old | 16 | |
| 25 to 34 years old | 8 | |
| 35 to 44 years old | 5 | |
| 45 to 64 years old | 7 |
Calculate the mean and the standard deviation of the age ofindividuals that purchased skateboarding shoes. Use 10 as themidpoint of the first class. (Do not round intermediatecalculations. Round your answers to 2 decimal places.)
Mean-
Variance-
Standard Deviation-
