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If np 2 5 and nq 25, estimate P(fewer than 3) with n 13 and p 0.4 by using the normal distributiorn as an approximation to the binomial distribution; if np <5 or nq<5, then state that the normal approximation is not suitable Select the correct choice below and, if necessary, fill in the answer box to complete your choice O A. P(fewer than 3)- (Round to four decimal places as needed.) B. The normal approximation is not suitable Click to select and enter your answer(s) and then click Check Answer
6.6.9-T Question Help Use a normal approximation to find the probability of the indicated number of voters. In this case, assume that 162 eligible voters aged 18-24 are randomly selected. Suppose a previous study showed that among eligible voters aged 18-24, 22% of them voted. Probability that fewer than 41 voted The probability that fewer than 41 of 162 eligible voters voted is (Round to four decimal places as needed.)
.4.17-T Question Help An engineer is going to redesign an ejection seat for an airplane. The seat was designed for pilots weighing between 130 lb and 171 lb. The new population of pilots has normally distributed weights with a mean of 139 lb and a standard deviation of 34.6 Ib a. If a pilot is randomly selected, find the probability that his weight is between 130 lb and 171 lb The probability is approximately (Round to four decimal places as needed) Enter your answer in the answer box and then click Check Answer
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