Concept explainers
A pizza restaurant is having a contest. The restaurant advertises that one out of every 25 customers will win a small pizza.
- What is the probability that a customer will win?
- If the restaurant has 275 customers on Monday, how many winners would you expect?
(a)
Find the probability that a customer will win.
Answer to Problem 6STP
Explanation of Solution
Given:
A pizza restaurant is having a contest.The restaurant advertises that one out of every 25 customers will win a small pizza.
Formula Used:
Calculation:
Number of customer that win = 1
Total number of customer = 25
(b)
If the restaurant has 275 customers on Monday, find the number of winners would you expect.
Answer to Problem 6STP
11
Explanation of Solution
Given:
A pizza restaurant is having a contest.The restaurant advertises that one out of every 25 customers will win a small pizza.
Calculation:
From part (a),
P(win) =
Here , there are 275 customers .
Let number of customers that win = x
P(win) =
Equating (1) and (2)
So, the number of winners = 11
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