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Question: Vision. It is generally believed that nearsightedness affects about 12% of all children. A school district tests the vision of 169 incoming kindergarten children. How many would you expect to be nearsighted? With what standard deviation?
Statistics and Probability, Statistics
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Assume that the coin is weighted so that a tail is 6 times as likely as a head. The coin is flipped 9 times. 1) What is the probability that both heads and tails occur?
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A sample of 189 randomly selected students found that the proportion of students planning to travel home for Thanksgiving is 0.66. What is the Standard Deviation of the sampling distribution?
A student is gathering data on the driving experiences of other college students. One of the variables measured is the type of car the student drives. These data are coded using the following method: 1 = subcompact, 2 = ...
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