Mathematics, 10.05.2021 18:20 cedavenport1277

The ACT Scale is composed of a number of sub tests. On one sub test, the raw scores have a mean of 28 and a standard deviation of 4. Assuming these raw scores form a normal distribution: a. What score separates the lower 45% of the distribution?
b. What number represents the 95th percentile (95% and below)?
c. What is the probability of getting a raw score between 22 and 30?
d. What is the probability of getting a raw score greater than 38?

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The ACT Scale is composed of a number of sub tests. On one sub test, the raw scores have a mean of 2...