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1. x is normal with mu of 100 and sigma of 15. Find the proportion of people with IQs of 80 or less. 2. Determine

1. x is normal with mu of 100 and sigma of 15. Find the proportion of people with IQs of 80 or less.

2. Determine the probability that z is less than -.022 or P(z < -.022)

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