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On a standardized test with normal distribution, the mean is85 and the standard deviation is 3. Within which rangeshould approximately 95% of the score lie?

Sagot :

Given the following question:

Given the following data

mean = 85

standard deviation = 3

[tex]\begin{gathered} 85-2(3) \\ 2\times3=6 \\ 85-6=79 \\ 85+2(3) \\ 2\times3=6 \\ 85+6=91 \\ 79-91 \end{gathered}[/tex]

Your answer is option B.

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