The grades of a science test are normally distributed. Thanh finds that his grade on the test has a z -score of negative 2 point 5 Which statement must be true?

Name: Revolt
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Question

Revolt · Accepted Answer

Thanh’s grade is  2 point 5  standard deviations below the mean of the test grades.

Practice Test

The grades of a science test are normally distributed. Thanh finds that his grade on the test has a z -score of negative 2 point 5 Which statement must be true?

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