Consider the following course grades: 1000 students, median of 84, mean of 80, low score of 10, high score of 97.

a) Which of the following best describes the skewness of distribution of scores.

1.Left skewed distribution: Very few students performed poorly

2.Left skewed distribution: Very few students performed well

3.Right skewed distribution: Very few students performed poorly

4.Right skewed distribution: Very few students performed well

b) Which of the following best describes the variation of distribution of scores.

1.High

2.Moderate

3.Low