Use the special multiplication rule to find the indicated probability.
-In one large city, 63% of adults have health insurance. What is the probability that 4 adults selected at random from the town all have health insurance?
A)0.158
B)2.52
C)0.63
D)0.063

Question

Use the special multiplication rule to find the indicated probability.
-In one large city, 63% of adults have health insurance. What is the probability that 4 adults selected at random from the town all have health insurance? 
A)0.158
B)2.52
C)0.63
D)0.063

Quizplus · Accepted Answer

The probability that all 4 adults selected at random have health insurance is found by multiplying the probability of one having health insurance (0.63) by itself four times (since the events are independent): $0.63^4 = 0.158$.

Use the Special Multiplication Rule to Find the Indicated Probability