1. For a particular sample of 50 scores on a psychology exam, the following results were obtained.

First quartile = 44 Third quartile = 68 Standard deviation = 9 Range = 55

Mean = 51 Median = 54 Mode = 71 Midrange = 64

Answer each of the following; show all work.

- What score was earned by more students than any other score? Why?

- What was the highest score earned on the exam?

- What was the lowest score earned on the exam?

- According to Chebyshev's Theorem, how many students scored between 24 and 78?

- Assume that the distribution is normal. Based on the Empirical Rule, how many students scored between 24 and 78? (Points :10)

First quartile = 44 Third quartile = 68 Standard deviation = 9 Range = 55

Mean = 51 Median = 54 Mode = 71 Midrange = 64

Answer each of the following; show all work.

- What score was earned by more students than any other score? Why?

- What was the highest score earned on the exam?

- What was the lowest score earned on the exam?

- According to Chebyshev's Theorem, how many students scored between 24 and 78?

- Assume that the distribution is normal. Based on the Empirical Rule, how many students scored between 24 and 78? (Points :10)