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2 votes
Rory was with some friends outside an ice cream parlor. He noticed that one out of every four people bought a vanilla cone. He wants to know the estimated probability that five randomly picked people entering the shop will not buy vanilla cones. How could you design a simulation of the scenario?

A. Spin a spinner with five equal sections five times. On the spinner, one section represents vanilla and four sections represent other flavors.
B. Spin a spinner with five equal sections four times. On the spinner, one section represents vanilla and four sections represent other flavors.
C. Spin a spinner with four equal sections five times. On the spinner, one section represents vanilla and three sections represent other flavors.
D. Spin a spinner with four equal sections four times. On the spinner, one section represents vanilla and three sections represent other flavors.

2 Answers

3 votes
The answer to the question C.
User Bek
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2 votes
C. would be the correct device to use in trials.

But the actual probability is:

(1-1/4)^5

243/1024

(about 23.73% chance none of the five chose vanilla)
User Nick Constantine
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7.8k points