Question 14 (1 point) d Suppose that scores on a statistics exam are normally di

Question

Question 14 (1 point) d Suppose that scores on a statistics exam are normally distributed with a mean of 84.812 and a standard deviation of 6.5397. Would it be unusual for a student to score between 53.06 and 76.1? 1) A value in this interval is not unusual. 2) A value in this interval is borderline unusual. 3) A value in this interval is unusual. 4) It is impossible for a value in this interval to occur with this distribution of data 5) We do not have enough information to determine if a value in this interval is unusual Save

Explanation / Answer

An event is unusual if it is more than 2 standard deviations from the mean.

Here, the usual range within which 95% lies = 84.812 - 2x6.5397

= 71.7326 to 97.8914

3) A value (53.06) in the interval is unusual

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