Caleb.
The idea behind a normal curve is that half the students scored below the mean and half scored above the mean. So with 130 students, 65 scored below 81.5.
Caleb C.
asked • 03/07/16The mean Algebra 2 test score is 81.5, with a standard deviation of 5.1.
The mean Algebra 2 test score is 81.5, with a standard deviation of 5.1. There are 130 students taking the course. Assuming a normally distributed curve, how many students scored below 81.5?
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