ledbettershelby18 ledbettershelby18
  • 12-10-2022
  • Mathematics
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20. The mean IQ score for 1500 students is 100, with a standard deviation of 15. Assuming the scores have a normal distribution, answer the following b. How many have an IQ between 70 and 130? 2. How many have an IQ between 85 and 115? e. How many have an IQ over 145?

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