Normally distributed population

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Reference no: EM1311357

Suppose that an IQ test was given to a large group of persons, the scores are assumed to be from a normally distributed population, that mean = 100 and s (standard deviation) = 15. What percentage of persons earned scores?

1. below 100?

2. above 115?

3. below 70?

4. above 130?

5. between 85 and 115?

Reference no: EM1311357

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