R is a set containing 8 different numbers. S is a set containing 7 different numbers, all of which are members of R. Which of the following statements CANNOT be true?	Pick.
A) The range of R is less than the range of S. B) The mean of R is greater than the mean of S. C) The range of R is equal to the range of S. D) The mean of R is less than the mean of S. E) The mean of R is equal to the mean of S.
The range of a set is the difference between the largest and smallest elements of a set.   So, the answer is straight A: the range of a subset cannot be more than the range of a whole set: how can the difference between the largest and smallest elements of a subset bemorethan the difference between the largest and smallest elements of a whole set.   As for D:   Consider set R to be {-3, -2, -1, 0, 1, 2, 3, 4} --&gt; mean=0.5.   (D) The mean of R is less than the mean of S --&gt; remove the smallest term -3, then the mean of S will be 1, so more than 0.5. The range of R is less than the range of S.NSWER IS The range of R is less than the range of S.
<result>A</result>
R is a set containing 8 different numbers. S is a set containing 7 different numbers, all of which are members of R. Which of the following statements CANNOT be true?