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Mathematics, 24.09.2020 03:01, quanntwann2873
A train travels between two cities. The time the trip takes is inversely
proportional to the average speed of the train. The trip takes 7 hours
at an average speed of 50 miles per hour. How long would the trip
take if the average speed is 70 miles per hour?
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Answers: 2
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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.
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A train travels between two cities. The time the trip takes is inversely
proportional to the averag...
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