In a normal distribution, represented by a bell-shaped curve, the largest percentage of scores falls ...

In a normal distribution, represented by a bell-shaped curve, the largest percentage of scores falls between
 
  A. 0 and 1 standard deviation from the mean
  B. 1 and 2 standard deviations from the mean
  C. 2 and 3 standard deviations from the mean
  D. 3 and 4 standard deviations from the mean
  E. unknown; it is impossible to determine from the information presented

Question 2

Susan scored 80 on a hypothetical, subjective assessment of her throwing maturity. The mean for her class was 60, and the standard deviation was 10. So Susan performed
 
  A. 20 standard deviation units above the mean
  B. 4 standard deviation units above the mean
  C. 2 standard deviation units above the mean
  D. 1 standard deviation unit above the mean

Question 3

Assessment should be performed for the purpose of
 
  A. screening students
  B. determining student progress
  C. evaluating the educational program
  D. determining the content of the educational program
  E. all selections for this question are correct