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Use the following data to answer problems A-D. Subject M s Chemistry 70 12 Math 28...

Use the following data to answer problems A-D.

Subject M s
Chemistry 70 12
Math 28 7

A. John scores 26 in a math test and 60 in a chemistry test. Which test did John perform better on, compared to others in the class? Explain why. (10 pts)

B. Betty scored 1.5 standard scores above the mean for each test. What were her raw scores for each test? (10 pts)

C.Oscar scored 73 on his chemistry test. What is his percentile rank? (10 pts)

D. Assuming the distribution of the above scores is normal, what is the percentage of people who scored within 1 standard deviation of the mean? (10 pts)

Math   Statistics-And-Probability   
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