Question

a new movie, beyond jupiter, was recently released, and the studio is asking theaters to find the average age of those coming to see it. as tickets are sold, every tenth person is given a concession coupon and asked their age until 15 people have been surveyed. here are the data for one screening: 36 56 16 9 29 63 37 44 52 70 19 40 45 33 36 what is the average age of moviegoers surveyed at this screening?
years old

Explanation:

Step1: Sum all the age values

$36 + 56 + 16 + 9 + 29 + 63 + 37 + 44 + 52 + 70 + 19 + 40 + 45 + 33 + 36 = 570$

Step2: Divide sum by number of data points

$\frac{570}{15} = 38$

Answer:

38 years old