Mathematics, 04.06.2021 06:10, Tirone
On a test that has a normal distribution, a score of 43 falls one standard deviation above the mean, and a score of 25 falls two standard deviations below the mean. Determine the mean of this test.
Answers: 1
Mathematics, 21.06.2019 21:00, newsome1996p4ggft
5x−4≥12 or 12x+5≤−4 can you with this problem
Answers: 3
Mathematics, 21.06.2019 23:30, johnlumpkin5183
Determine if the following statement is true or false. the normal curve is symmetric about its​ mean, mu. choose the best answer below. a. the statement is false. the normal curve is not symmetric about its​ mean, because the mean is the balancing point of the graph of the distribution. the median is the point where​ 50% of the area under the distribution is to the left and​ 50% to the right.​ therefore, the normal curve could only be symmetric about its​ median, not about its mean. b. the statement is true. the normal curve is a symmetric distribution with one​ peak, which means the​ mean, median, and mode are all equal.​ therefore, the normal curve is symmetric about the​ mean, mu. c. the statement is false. the mean is the balancing point for the graph of a​ distribution, and​ therefore, it is impossible for any distribution to be symmetric about the mean. d. the statement is true. the mean is the balancing point for the graph of a​ distribution, and​ therefore, all distributions are symmetric about the mean.
Answers: 2
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