If a certain sample of data has a mean of 22.0 and the value 40.0 is more than 2.5 standard deviations from the mean, which of the following could be the standard deviation of the sample
Choose the correct choice from the following choices:
A) 3.75 B) 7.15 C) 3.25 D) 3.0 E) 2.75
40.0 is more than 2.5 standard deviations from 22 --&gt; 40 &gt; 222 + 2.5*{SD} --&gt; 2.5*{SD} &lt; 18 --&gt; {SD} &lt; 7.2. Only option 7.15 offers the standard deviation less than 7.2   Answer: 7.15
<result>B</result>
If a certain sample of data has a mean of 22.0 and the value 40.0 is more than 2.5 standard deviations from the mean, which of the following could be the standard deviation of the sample