Mathematics, 27.12.2019 01:31 rehooreh14

The height, in inches, of a randomly chosen american woman is a normal random variable with mean μ = 64 and variance 2 = 7.84. (a) calculate the probability that the height of a randomly chosen woman is between 59.8 and 68.2 inches. (b) given that a randomly chosen woman is tall enough to be an astronaut (i. e., at least 59 inches tall), what is the conditional probability that she is at least 67 inches in height? (c) four women are chosen at random. calculate the probability that their total height is at least 260 inches. (d) suppose that z ∼ n(0, 1). prove that e(z19) = 0.

Answers: 1

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 16:20, mattmaddox86

The number of potato chips in a bag is normally distributed with a mean of 71 and a standard deviation of 2. approximately what percent of bags contain between 69 and 73 potato chips? approximately 68% approximately 71% approximately 95% approximately 99.7%

Answers: 2

continue

Mathematics, 21.06.2019 20:30, AllanCasey12

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?

Answers: 1

continue

Mathematics, 21.06.2019 20:40, vanitycarraway2000

Which table represents points on the graph of h(x) = 3√-x+2?

Answers: 3

continue

Mathematics, 21.06.2019 22:00, WhirlyWave

Which function in vertex form is equivalent to f(x) = x2 + 6x + 3? f(x) = (x + 3)2 + 3 f(x) = (x + 3)2 − 6 f(x) = (x + 6)2 + 3 f(x) = (x + 6)2 − 6