(a) Of the 4 students who scored less than 500 on the 1st exam, what percent scored higher on the 2nd exam? Enter a whole number. (b) of the 7 students who scored greater than 650 on the 1st exam, what percent scored worse on the 2nd exam? Round the percentage to 1 decimal place. (c) Explain how your answers to parts (a) and (b) illustrate regression to the mean. % %

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