Mathematics, 01.05.2021 19:50 bthakkar25
Suppose that the lifetimes of a certain kind of light bulb are normally distributed with a standard deviation if 110 hours. If exactly 95% of the bulbs die before 920 hours, find the mean lifetime if the bulbs
Answers: 3
Mathematics, 21.06.2019 15:40
What is the distance between the points 4,10 and -3,-14 on the coordinate plane
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Mathematics, 21.06.2019 19:30
Need now max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.
Answers: 1
Mathematics, 21.06.2019 21:20
Rose bought a new hat when she was on vacation. the following formula describes the percent sales tax rose paid b=t-c/c
Answers: 3
Suppose that the lifetimes of a certain kind of light bulb are normally distributed with a standard...
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