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Score: 8/10475 answeredQuestion 5<>The time to complete an exam is approximately Normal with a mean of 47 minutes and a standard deviation of2 minutes.The bell curve below represents the distribution for testing times. The scale on the horizontal axis is equal tothe standard deviation. Fill in the indicated boxes.H = 47o= 2H-3ơ -20+20 +30DDDDQuestion Help: D VideoSubmit Question

Answer 1

Given that the time to complete an exam is approximately normal with a mean 47 minutes and a standard deviation of 2 minutes.

Here

`\begin{gathered} \mu=47 \\ \sigma=2 \end{gathered}`

Therefore,

`\begin{gathered} \mu-3\sigma=47-3(2) \\ =47-6 \\ =41 \\ \mu-2\sigma=47-2(2) \\ =47-4 \\ =43 \end{gathered}`
`\begin{gathered} \mu-\sigma=47-2 \\ =45 \\ \mu=47 \\ \mu+\sigma=47+2 \\ =49 \\ \mu+2\sigma=47+2(2) \\ =47+4 \\ =51 \\ \mu+3\sigma=47+3(2) \\ =47+6 \\ =53 \end{gathered}`

Hence, the values in the given blanks from the very left sides are

41, 43, 45, 47, 49, 51, 53