The accompanying cumulative relative frequency distribution shows a summary of the scores from an Algebra II exam at a local high school.Twenty students took the exam. 
a.Construct the relative frequency distribution.What proportion of students scored between 81 and 90?
B)Construct the frequency distribution.How many students scored between 71 and 80?
C)Construct an ogive.What is the approximate percentage of students that scored less than 85?
Definitions:
Superfactors
Refers to overarching dimensions of personality identified in the study of psychology, such as those found in the Five-Factor Model.
Thematic Apperception Tests
A projective psychological test used to reveal a person’s social drives or needs by their interpretation of a series of pictures of emotionally ambiguous situations.
Ego Resiliency
In Jack Block’s personality theory, the ability to vary one’s level of ego control in order to respond appropriately to opportunities and situational circumstances.
Psychological Adjustment
The process of achieving a healthy, balanced state of psychological well-being through adapting to new conditions or the environment.
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