6. Find the mean and standard deviation of the binomial distribution when n= 60 and p 1/6. Note that this would correspo
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6. Find the mean and standard deviation of the binomial distribution when n= 60 and p 1/6. Note that this would correspo
6. Find the mean and standard deviation of the binomial distribution when n= 60 and p 1/6. Note that this would correspond to the number of times a "one" would appear in 60 tosses of a fair die. 7. = Given the probability function P(x) = (6 – x)/15, for x = 1, 2, 3, 4, or 5. Find the mean and standard deviation.
6. A test-scoring machine is known to record an incorrect grade on 5% of the exams it grades. Find, by the appropriate method, the probability that the machine records a. 2 wrong grades in a set of 10 exams. b. no more than 2 wrong grades in a set of 10 exams. no more than 2 wrong grades in a set of 15 exams. d. no more than 2 wrong grades in a set of 150 exams. c.