The Test Scores from a Recent Mathematics Test Are as Follows

question 110

Multiple Choice

The test scores from a recent Mathematics test are as follows: 95.5,65.9,93.2,88.6,56.8,50,86.4,54.5,40.9,77.3,79.5,65.9,70.5,77.3,81.8,50,79.5,and 68.2.The mean score was 71.2 with a standard deviation of 15.5.If the Normal model is appropriate,what percent of the scores will be less than 40.2?

• A)0.15%
• B)10%
• C)5%
• D)15.87%
• E)2.28%

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Definitions:

Problem Behavior

Actions or patterns of behavior that are socially unacceptable or harmful to oneself or others.

Observing

The act of carefully watching or monitoring something or someone to gather information, often used in scientific research or behavioral studies.

Recording

The act of capturing data, sounds, images, or performances for later retrieval and analysis.

One's Own Behaviors

The actions or reactions of an individual in response to external or internal stimuli.