The arithmetic mean and standard deviation of a certain normal distribution are 14.0 and 1.5, respectively. What value is exactly 2 standard deviations less than the mean?	Choose the correct choice from the following options
A) 10.5  B) 11  C) 11.5  D) 12  E) 12.5
The value which isexactlytwo SD less than the mean is:mean-2*SD=14.0-2*1.5= 
<gadget id="calculator">14.0-2*1.5</gadget>
<output>11</output>
11.   Answer: 11.
<result>B</result>
The arithmetic mean and standard deviation of a certain normal distribution are 14.0 and 1.5, respectively. What value is exactly 2 standard deviations less than the mean?