Math miscellaneousHard
Question
If the mean deviation of number 1, 1 + d, 1 + 2d, ....., 1 + 100d from their mean is 255, then the d is equal to
Options
A.10.0
B.20.0
C.10.1
D.20.2
Solution
[1 + 1 + 100d] = 1 + 50d
[50d + 49d + 48d +...+ d + 0 + d + ... + 50d]
⇒
Create a free account to view solution
View Solution FreeMore Math miscellaneous Questions
The value of the integral I = x(1 - x)n dx is...If C is centre and A and B are two points on conic 4x2 - 9y2 - 8x - 36y + 4 = 0 such that ∠ ACB = , then CA-2 + CB...A die is tossed 5 times. Getting an odd number is considered a success. Then the variance of distribution of success is...If || = 4, || = 2 and the angle between and is π/6 then = 2 is equal to...If P(A) = 0.59, P(B) = 0.30, P(A ∩ B) = 0.21 then P is :-...