Estimate the percentage of students scoring over 700 in

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From the mid-1960s to the early 1990s, there was a slow but steady declinein SAT scores. For example, take the Verbal SAT. The average in 1967 wasabout 543; by 1994, the average was down to about 499. However, the SDstayed close to 110. The drop in averages has a large effect on the tails of thedistribution.

(a) Estimate the percentage of students scoring over 700 in 1967.

(b) Estimate the percentage of students scoring over 700 in 1994.

Reference no: EM13580668

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