The Following Data Represent the Scores of 50 Students on a Statistics

question 77

Essay

The following data represent the scores of 50 students on a statistics exam. Suppose that one of the 50 students is chosen at random and that student's score is noted.
$$\begin{array} { l l l l l l l l l l } 39 & 51 & 59 & 63 & 66 & 68 & 68 & 69 & 70 & 71 \\71 & 71 & 73 & 74 & 76 & 76 & 76 & 77 & 78 & 79 \\79 & 79 & 79 & 80 & 80 & 82 & 83 & 83 & 83 & 85 \\85 & 86 & 86 & 88 & 88 & 88 & 88 & 89 & 89 & 89 \\90 & 90 & 91 & 91 & 92 & 95 & 96 & 97 & 97 & 98\end{array}$$ a. What is the probability that the student's score is 88?
b. What is the probability that the student's score is less than 60?
c. What is the probability that the student's score is between 70 and 79, inclusive?

Recognize the factors that influence the quality and longevity of relationships, including early childhood experiences.

Identify the social and psychological effects of cohabitation, marriage, and divorce.

Explain the role of friendships in social and emotional development.

Analyze the impact of aging on relationships and social networks.

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Definitions:

Systematic Desensitization

A behavioral therapy technique used to help individuals overcome phobias and anxiety through gradual exposure.

Behavior Therapy

A type of psychotherapy that focuses on changing undesirable behaviors through conditioning and reinforcement techniques.

Psychodynamic Therapy

A therapeutic approach that emphasizes unconscious psychological processes and contends that childhood experiences are crucial in shaping adult personality.

Cognitive Therapy

A form of psychotherapy that emphasizes the role of thought patterns and beliefs in influencing behavior and emotions, aiming to change negative or irrational thoughts.