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In: Math

Based on data from a​ college, scores on a certain test are normally distributed with a...

Based on data from a​ college, scores on a certain test are normally distributed with a mean of 1518 and a standard deviation of 324.

Standard score   Percent
-3.0   0.13
-2.5   0.62
-2   2.28
-1.5   6.68
-1   15.87
-0.9   18.41
-0.5   30.85
-0.1   46.02
0   50.00
0.10   53.98
0.5   69.15
0.9   81.59
1   84.13
1.5   93.32
2   97.72
2.5   99.38
3   99.87
3.5   99.98

Find the percentage of scores greater than

2166

Find the percentage of scores less than

1194

Find the percentage of scores between

870

and

1680.

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