Stanford–Binet IQ Test scores are normally distributed with a mean score of 100 and a standard...

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Stanford–Binet IQ Test scores are normally distributed with a mean score of 100 and a standard deviation of 15. (10 points)

Sketch the distribution of Stanford–Binet IQ test scores.
Write the equation that gives the z score corresponding to a Stanford–Binet IQ test score. Sketch the distribution of such z scores.
Find the probability that a randomly selected person has an IQ test score
1. Over 145.
2. Under 91.

math Statistics-And-Probability

Answer 1

Answer #1

Answer 2

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