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Answer to number 8? I and wondering the probability

Answer to number 8? I and wondering the probability-example-1
User James Eby
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The quantity you want is the area under the standard normal curve (with mean 100 and std dev 15) between 110 and 120.

According to my TI-83 calculator,

normalcdf(110,120, 100, 15) = 0.16, or 16%.
User Huske
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