A random variable X has the following probability distribution
X= x | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
P(X = x) | 0.15 | 0.23 | k | 0.10 | 0.20 | 0.08 | 0.07 | 0.05 |
For the events E = {x/x is a prime number} and F = {x/x <4} then P(E ∪ F)
0.57
0.87
0.77
0.35
The correct option is: (C) 0.77
The ratio of the radii of two solid spheres of same mass in 2:3. The ratio of the moments of inertia of the spheres about their diameters is:
If (-c, c) is the set of all values of x for which the expansion is (7 - 5x)-2/3 is valid, then 5c + 7 =
The general solution of the differential equation (x2 + 2)dy +2xydx = ex(x2+2)dx is
If i=√-1 then
\[Arg\left[ \frac{(1+i)^{2025}}{1+i^{2022}} \right] =\]If nCr denotes the number of combinations of n distinct things taken r at a time, then the domain of the function g (x)= (16-x)C(2x-1) is