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A Standardized Test Has a Mean Score of 500 Points  Adam: 575 Beth: 690 Carlos: 750 Doug: 280 Ella: 440\text { Adam: } 575 \quad \text { Beth: } 690 \quad \text { Carlos: } 750 \quad \text { Doug: } 280 \quad \text { Ella: } 440

question 162

Multiple Choice

A standardized test has a mean score of 500 points with a standard deviation of 100 points. Five students' scores are shown below.

 Adam: 575 Beth: 690 Carlos: 750 Doug: 280 Ella: 440\text { Adam: } 575 \quad \text { Beth: } 690 \quad \text { Carlos: } 750 \quad \text { Doug: } 280 \quad \text { Ella: } 440


Which of the students have scores within two standard deviations of the mean?


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