(Answered) Test scores were recorded for students in a statistics

Engineering

Test scores were recorded for students in a statistics class. The test scores for the first test had a standard deviation of 3.8 points. The scores from the second test had a standard deviation of 4.8 points. Choose the correct statement below.

The average test grade rose by one point, the scores of the second test were closer together than the first, the higher standard deviation of the second test indicates higher average scores on the second test than the first, or none of the above are true.

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