Question
Mathematics Question on Mean, median, mode and standard deviation
The mean of 12 numbers is 19. If 4 is subtracted from each number, then the new mean is
A
17
B
23
C
21
D
15
Answer
15
Explanation
Solution
The correct option is (D): 15
The mean of 12 numbers is 19. If 4 is subtracted from each number, then the new mean is
17
23
21
15
15
The correct option is (D): 15