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Find the expected value, variance and standard deviation of the random variable whose p.m.f.’s are given below :
| x = x | -1 | 0 | 3 |
| P (X = x) | `1/5` | `2/5` | `2/5` |
Concept: undefined >> undefined
Find the expected value, variance and standard deviation of the random variable whose p.m.f.’s are given below :
| x = x | 1 | 2 | 3 | ... | n |
| P (X = x) | `1/n` | `1/n` | `1/n` | ... | `1/n` |
Concept: undefined >> undefined
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Find the expected value, variance, and standard deviation of the random variable whose p.m.f.’s are given below :
| x = x | 0 | 1 | 2 | 3 | 4 | 5 |
| P (X = x) | `1/32` | `5/32` | `10/32` | `10/32` | `5/32` | `1/32` |
Concept: undefined >> undefined
The graph of the inequality 3X − 4Y ≤ 12, X ≤ 1, X ≥ 0, Y ≥ 0 lies in fully in
Concept: undefined >> undefined
Sketch the graph of inequation x ≥ 5y in xoy co-ordinate system
Concept: undefined >> undefined
Find the graphical solution for the system of linear inequation 2x + y ≤ 2, x − y ≤ 1
Concept: undefined >> undefined
Find the feasible solution of linear inequation 2x + 3y ≤ 12, 2x + y ≤ 8, x ≥ 0, y ≥ 0 by graphically
Concept: undefined >> undefined
Find the solution set of inequalities 0 ≤ x ≤ 5, 0 ≤ 2y ≤ 7
Concept: undefined >> undefined
Examine whether the statement pattern
[p → (∼q ˅ r)] ↔ ∼[p → (q → r)] is a tautology, contradiction or contingency.
Concept: undefined >> undefined
The equation of X axis is ______
Concept: undefined >> undefined
If the planes 2x – my + z = 3 and 4x – y + 2z = 5 are parallel then m = ______
Concept: undefined >> undefined
If the foot of the perpendicular drawn from the origin to the plane is (4, −2, -5), then the equation of the plane is ______
Concept: undefined >> undefined
The coordinates of the foot of perpendicular drawn from the origin to the plane 2x + y − 2z = 18 are ______
Concept: undefined >> undefined
If y = `tan^-1((2x)/(1 - x^2))`, x ∈ (−1, 1) then `("d"y)/("d"x)` = ______.
Concept: undefined >> undefined
If g is the inverse of f and f'(x) = `1/(1 + x^4)` then g'(x) = ______
Concept: undefined >> undefined
Find the derivative of the inverse of function y = 2x3 – 6x and calculate its value at x = −2
Concept: undefined >> undefined
Let f(x) = x5 + 2x – 3 find (f−1)'(-3)
Concept: undefined >> undefined
Find the derivative of cos−1x w.r. to `sqrt(1 - x^2)`
Concept: undefined >> undefined
Differentiate `tan^-1[(sqrt(1 + x^2) - 1)/x]` w.r. to `tan^-1[(2x sqrt(1 - x^2))/(1 - 2x^2)]`
Concept: undefined >> undefined
A ladder 5 m in length is resting against vertical wall. The bottom of the ladder is pulled along the ground, away from the wall at the rate of 1.5 m /sec. The length of the higher point of the when foot of the ladder is 4 m away from the wall decreases at the rate of ______
Concept: undefined >> undefined
