In one town, 77% of adults have health insurance. What is the probability that 5 adults selected at random from the town all have health insurance

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chachachick4377 chachachick4377

16-11-2021
Mathematics

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In one town, 77% of adults have health insurance. What is the probability that 5 adults selected at random from the town all have health insurance

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moon9523 moon9523 · Answer 1 · 2021-11-16T22:17:17+01:00

The number may be calculated as (0.79) ^ 4 = 0.3895 = 0.400.

This is becasue the probability of finding each adult having health insurance is independent of others.

When, events are independent, the combined probability is the product of each probability =>
Probailibty of one adult with healt insurance probability of one adult with healt insurance probability of one adult with health insurance probability of one adult with health insurance = 0.79 * 0.79 * O.79 * 0.79 = (0.79) ^ 4.