A set of exam scores is normally distributed with a mean = 84 and standard deviation = 10. 95% of the data values lie between and . % of the exam scores are between 74 and 84. % of the exam scores are between 84 and 104. % of the exam scores are between 94 and 104. % of the exam scores are greater than or equal to 74.
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95% of the data values lie between: Since the data is normally distributed, we know that 95% of the data lies within 2 standard deviations of the mean. So, we can calculate the lower and upper bounds as follows: Lower bound: $84 - 2(10) = 84 - 20 = 64$ Upper Show more…
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