(a) the computin (b) the special formula for the Val A traffic study shows that
ID: 3359259 • Letter: #
Question
(a) the computin (b) the special formula for the Val A traffic study shows that 90% of motor vehicles th at a certain intersection hav the m 6.70 e to wait at least 15 seconds beforeo mber of motor vehicles amo coiedsopr à ean of the distribution of the nun stop roceeding, Find selected motor vehicles that come to this stop signal nd have to wait at lea seconds before proceeding (a) by looking up the probabilities i 10 random king up the probabilities in Table I and then using the nes the mean of a probability distribution; d then using the for defi (b) by using the special formula for the mean of the binomial distribu With reference to Exercise 6.70, where = 9 motor vehicles, find th 6.71 deviation of the number of motor vehicles that have to wait aastandad before proceeding (a) using the formula for the standard deviation of a probability dist ast15 (b) using the special formula for the standard deviation of the binomia the mean and the standard deviation of the distribution of the nu 6.73 In general, the mean of a binomial distribution can be found by using the formol 6.72 If 95% of the bottles collected in a recycling bin are suitable for distribution bottles among 15 selected at random that are suitable for recycling, using the snei formulas for the mean and the standard deviation of a binomial distribution. recycling, find number of these = np. Using this formula, find (a) the mean number of heads obtained in 5 flips of a balanced coin; (b) the mean number of persons in a sample of 10 persons who will miss te departure of a passenger plane if the probability of missing the departure ( shows) is 0.05; (c) the mean number of seconds (slightly flawed) shirts produced among 6 si where the nrobahility of nroducing a second is 0.10Explanation / Answer
Mean = n * P
= 15 * 0.95 = 14.25
Standard deviation = sqrt (n * P * (1 - P))
= sqrt(15 * 0.95 * 0.05)
= 0.84
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