Mathematics, 05.05.2021 23:10 roxygirl8914
Normal Distributions
The school has received back the end of course exam scores for the ninth grade math exam. The scores are normally distributed with a mean of 75 and a standard deviation of 7. Label the Normal Distribution curve, including the mean and 3 standard deviations on each side of the mean.
What percent of the ninth graders scored below an 82?
Answers: 2
Mathematics, 21.06.2019 13:30
Frank has $66.50 in his account on sunday. over the next week, he makes the following changes to his balance via deposits and purchases: day debit ($) credit ($) monday 60.33 80.75 tuesday 54.45 wednesday 49.20 15.00 thursday 35.40 friday 16.85 75.00 saturday 80.56 on what day does frank first get charged an overdraft fee? a. wednesday b. thursday c. friday d. saturday select the best answer from the choices provided a b c d
Answers: 3
Mathematics, 21.06.2019 19:30
Needmax 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: 2
Mathematics, 21.06.2019 21:30
Ihave a triangle with a 60 degree angle. lets use d for that angle. what are the values of e and f if d is 60 degrees? and what do you notice about the values of e and f?
Answers: 2
Mathematics, 21.06.2019 23:00
The ratio of the perimeters of two similar triangles is 4: 3. what are the areas of these triangles if the sum of their areas is 130cm2?
Answers: 3
Normal Distributions
The school has received back the end of course exam scores for the ninth grad...
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