Mathematics, 20.04.2021 16:20 mollie053005
4. About 10% of people in the United States do not wear a seat belt. Suppose we take a random
sample of 180 U. S. residents, and let X= the number of people who do not wear their seat belt.
(A) calculate the mean and standard deviation of the sampling distribution of X
(B) Justify that the distribution of X is approximately normal
(C)Use the normal distribution to calculate the probability that 26 or more individuals in the sample do not wear their seat belt
Answers: 2
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4. About 10% of people in the United States do not wear a seat belt. Suppose we take a random
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