Question
Mathematics Question on Variance and Standard Deviation
Let mean and variance of 6 observations a, b, 68, 44, 40, 60 be 55 and 194. If a > b then find a + 3b
A
211.83
B
201.59
C
189.57
D
198.87
Answer
201.59
Explanation
Solution
The correct option is (B): 201.59