If a certain sample of data has a mean of 11.0 and the value 20.0 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 options
A) 14.75 B) 3.55 C) 4.25 D) 4.0 E) 2.75
20.0 is more than 2.5 standard deviations from 11 --&gt; 20 &gt; 11 + 2.5*{SD} --&gt; 2.5*{SD} &lt; 9 --&gt; {SD} &lt; 3.6. Only option B offers the standard deviation less than 3.6.   Answer: 3.55
<result>B</result>
If a certain sample of data has a mean of 11.0 and the value 20.0 is more than 2.5 standard deviations from the mean, which of the following could be the standard deviation of the sample