Mean score of a college entrance test


The mean score of a college entrance test is 500; the standard deviation is 75. The scores are normally distributed. What percent of the students scored below 320?

a) About 50.82%

b) About 0.82%

c) About 34.13%

d) None of the above

e) About 7.86%

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Basic Statistics: Mean score of a college entrance test
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