Question 1044807
z=(x-mean)/sd
=(675-501)/113
=1.54
want probability z < 1.54=0.9382 or 93.82%.
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z=(550-501)/113=49/113=0.43
probability z > 0.43 is 0.334
I can't say how many SAT scores would be greater than 550, only the per cent, which is 33.36%, very close to one third, and 33% to the nearest whole number.