SOLUTION: How do you solve: A children's theater found in a random survey that 65 customers bought one snack bar item, 40 bought two items, 26 bought three items, 14 bought four items, an

Algebra ->  Probability-and-statistics -> SOLUTION: How do you solve: A children's theater found in a random survey that 65 customers bought one snack bar item, 40 bought two items, 26 bought three items, 14 bought four items, an      Log On


   

Question 369661: How do you solve:
A children's theater found in a random survey that 65 customers bought one snack bar item, 40 bought two items, 26 bought three items, 14 bought four items, and 18 avoided the snack bar altogether. Use this information to find the expected number of snack bar items per customer.
Thank you!
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
How do you solve:
A children's theater found in a random survey that 65 customers bought one snack bar item, 40 bought two items, 26 bought three items, 14 bought four items, and 18 avoided the snack bar altogether. Use this information to find the expected number of snack bar items per customer.
-----
Average = # of items/# of customers
-------
Average = (65*1+40*2 + 26*3+14*4+18*0)/[65+40+26+14+18) = 1.7117 items/person
=====================================
Cheers,
Stan H.