Question: Using Appendix Data Set or the file ADD.dat on the Web site, a. What is the probability that a person drawn at random will have

Using Appendix Data Set or the file ADD.dat on the Web site,

a. What is the probability that a person drawn at random will have an ADDSC score greater than 50 if the scores are normally distributed with a mean of 52.6 and a standard deviation of 12.4?

b. What percentage of the sample actually exceeded 50?

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