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The test scores of students on a science test are normally distributed with an average score of 78 and a standard deviation of 4. Which statements are true? Choices are: About 68% of the students scored 82 or below. About 97.5% of the students scored 86 or below.

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Answer:

Step-by-step explanation:

About 97.5% of the students scored 86 or below.

See image below .....

   approx 97.5% of the scores are BELOW +2 standard deviation from the mean (which would be a score of 86)

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