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G says is the distribution right skewed, left skewed or symmetric 9) A particular statistics test was taken by 200 students, A few of the

G says "is the distribution right skewed, left skewed or symmetric"

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9) A particular statistics test was taken by 200 students, A few of the test scores are given in the following table along with their corresponding z-scores and percentiles. Test Score 66 69 75 81 90 96 z-score -1.5 -1 0 1 2.5 3.5 Percentile 20 30 42 50 85 99 From only this table answer the following questions about the entire distribution of 200 scores: a) What is the mean of this distribution? b) What is the median of this distribution? c) What is the standard deviation of the distribution? d) What is the variance of the distribution? e) What percent of scores are between the test scores 69 and 90? f) How many scores are above 96

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