Question
An intelligence test gives a score that follows a normal distribution with a mean of 100 and a standard deviation of 15. a. Determine the
An intelligence test gives a score that follows a normal distribution with a mean of 100 and a standard deviation of 15.
a. Determine the percentage of the population that would obtain a coefficient between 95 and 110. (Approximate 4 decimal places) = Answer
b. What is the largest score in the interval centered at 100 that contains 50% of the population? = Answer
c. In a population of 2,500 individuals, how many individuals are expected to have a coefficient greater than 125? = Answer
d. What is the 98% percentile value for the test distribution? = Answer and.
If 5 are chosen at random, what is the expected value of those with a score greater than 95? = Answer
F. If an element of the population has a score greater than 95, what is the probability that its score is greater than 110? = Answer
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