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
Mathematics, 21.06.2019 15:00
Acircular hot tub located near the middle of a rectangular patio has a diameter of 48 inches. the patio measures 11 feet by 6 feet. what is the area of the patio that is not covered by the hot tub?
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Solve the equation below: (x+4)/6x=1/x a. x=2 b. x=0,2 c. x=-2 d. x=0,-2
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Tommy buys a sweater that is on sale for 40% off the original price. the expression p -0.4p can be used to find the sale price of the sweater, where p is the original price of the sweater. if the original price of the sweater is 50, what is the sale price?
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