Suppose the scores on an exam are normally distributed with a mean of 67 points, and a standard deviation of 14 points. Which of the following would be true about the distribution of scores? The distribution is bell-shaped where about 68% of the class scored between 53 points and 81 points, about 95% of the class scored between 37 points and 97 points, and about 99.7% of the class scored between 24 points and 125 points. The distribution is bell shaped where about 68% of the class scored between 53 points and 81 points, about 95% of the class scored between 39 points and 95 points, and about 99.7% of the class scored between 25 points and 109 points. The distribution is bell shaped where about 68% of the class scored between 53 points and 81 points, about 95% of the class scored between 39 points and 95 points, and about 99.7% of the class scored between 21 points and 114 points.

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Suppose the scores on an exam are normally distributed with a mean of 67 points, and a standard
deviation of 14 points. Which of the following would be true about the distribution of scores?
The distribution is bell-shaped where about 68% of the class scored between 53 points and 81 points, about
95% of the class scored between 37 points and 97 points, and about 99.7% of the class scored between 24
points and 125 points.
The distribution is bell shaped where about 68% of the class scored between 53 points and 81 points, about
95% of the class scored between 39 points and 95 points, and about 99.7% of the class scored between 25
points and 109 points.
The distribution is bell shaped where about 68% of the class scored between 53 points and 81 points, about
95% of the class scored between 39 points and 95 points, and about 99.7% of the class scored between 21
points and 114 points.
Transcribed Image Text:Suppose the scores on an exam are normally distributed with a mean of 67 points, and a standard deviation of 14 points. Which of the following would be true about the distribution of scores? The distribution is bell-shaped where about 68% of the class scored between 53 points and 81 points, about 95% of the class scored between 37 points and 97 points, and about 99.7% of the class scored between 24 points and 125 points. The distribution is bell shaped where about 68% of the class scored between 53 points and 81 points, about 95% of the class scored between 39 points and 95 points, and about 99.7% of the class scored between 25 points and 109 points. The distribution is bell shaped where about 68% of the class scored between 53 points and 81 points, about 95% of the class scored between 39 points and 95 points, and about 99.7% of the class scored between 21 points and 114 points.
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