Question

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?

Answer 1

Given the following question:

Given the following data

mean = 85

standard deviation = 3

`\begin{gathered} 85-2(3) \\ 2*3=6 \\ 85-6=79 \\ 85+2(3) \\ 2*3=6 \\ 85+6=91 \\ 79-91 \end{gathered}`

Your answer is option B.