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Suppose scores on an IQ test are normally distributed. If the test has a mean of...

Suppose scores on an IQ test are normally distributed. If the test has a mean of 100 and a standard deviation of 10.

1. What is the probability that a person who is randomly selected will score between 83 and 102?

2. What is the probability that a person who is randomly selected will score more than 119?

3. What IQ score corresponds to the 83rd percentile for all people?

Math   Statistics-And-Probability   
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