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AssignmentMultiple Choice

The Multiplication Rule for Dependent Events

Question 1 • PISD-Statistics B 4th GP

A survey found that 73% of people use streaming services. Of those who stream, 28% report that they download movies.Find the probability that a randomly selected person uses streaming services and downloads movies.

Answer
A
0.20
B
0.28
C
0.38
D
2.61

Explanation

To find the probability that a person both streams and downloads movies, multiply the probability they stream by the probability they download given that they stream: 0.73 × 0.28 = 0.2044. Rounded to the nearest hundredth, that is 0.20, so the correct choice is 0.20.

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