Determine the probability - standard deviation & mean , Basic Statistics

1. This question has multiple parts.

For a distribution of scores with = 82 and standard deviation = 2.5, find the following:

(Don't forget to sketch the normal curve to help you visualize what you are trying to find.)

A. What is the percentage of scores falling between the mean and a raw score of 84?

B. What is the probability of a score falling above a raw score of 86?

C. What is the probability of a score falling between the raw scores of 83 and 87?

D. The percentile rank of a score of 79.

E. The percentile rank of a score of 89.

Posted Date: 3/9/2013 12:54:47 AM | Location : United States







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