Mathematics, 18.07.2019 03:30 caitlyn73
Suppose the heights of 18-year-old men are approximately normally distributed, with mean 67 inches and standard deviation 5 inches. (a) what is the probability that an 18-year-old man selected at random is between 66 and 68 inches tall? (round your answer to four decimal places.) (b) if a random sample of twelve 18-year-old men is selected, what is the probability that the mean height x is between 66 and 68 inches? (round your answer to four decimal places.)
Answers: 1
Mathematics, 21.06.2019 19:30, jasminetaylor4587
According to the data set, where should the upper quartile line of the box plot be placed?
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Mathematics, 21.06.2019 19:30, raytaygirl
Lin is writing an equation to model the proportional relationship between y, the total cost in dollars of downloading videos from a website, and x, the number of videos downloaded. she knows that the total cost to download 3 videos was $12. her work to find the equation is shown below. joylin’s work step 1 k= 3/12= 0.25 step 2 y= 0.25x where did joylin make her first error?
Answers: 2
Mathematics, 21.06.2019 21:30, allisonboggs85
Two airplanes start at the same place and travel in opposite directions, one at 395 miles per hour and the other at 422 miles per hour. how many hours will it take for the planes to be 2451 miles apart?
Answers: 1
Mathematics, 21.06.2019 21:40, pakabigail4796
The point a is at –2 and the point b is at 7. marissa would like to divide this line segment in a 4: 3 ratio, and she would like to use the formula x = (x2 – x1) + x1. what values should she substitute into the formula? a = a + b = x1 = x2 =
Answers: 2
Suppose the heights of 18-year-old men are approximately normally distributed, with mean 67 inches a...
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