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Mathematics, 20.11.2021 14:10 Rocket3138
Hugo averages 71 words per minute on a typing test with a standard deviation of 5.5 words per minute. Suppose Hugo's words per minute on a typing test are normally distributed. Let X= the number of words per minute on a typing test. Then, X∼N(71,5.5). Suppose Hugo types 65 words per minute in a typing test on Wednesday. The z-score when x=65 is . This z-score tells you that x=65 is standard deviations to the (right/left) of the mean, .
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Hugo averages 71 words per minute on a typing test with a standard deviation of 5.5 words per minute...
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