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    statistical problem

    The NCAA requires division I athletes to score at least 820 on the combined mathematics and verbal parts of the SAT exam in order to compete in their first college year. In 1999, the scores of more than one million students taking the SATs were approximately normal with mean 1017 and std deviation 209. What percent of all students had scores less than 820?
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    Quote Originally Posted by DINOCALC09 View Post
    The NCAA requires division I athletes to score at least 820 on the combined mathematics and verbal parts of the SAT exam in order to compete in their first college year. In 1999, the scores of more than one million students taking the SATs were approximately normal with mean 1017 and std deviation 209. What percent of all students had scores less than 820?
    You need to calculate Pr(X < 820) = Pr(Z < -0.9426) = Pr(Z > 0.9426) = 1 - Pr(Z < 0.9426).
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