Most Important Selected Qs for JEE AdvancedMathematicsProbability
Paragraph: Continuous probability distributions, a continuous distribution is one in which the variate may take any value between certain limits a and b , a b . Suppose that the probability of the variate X falling in the infinitesimal interval x- 1 2 d x to x+ 1 2 d x is expressible as f(x) d x , where f(x) is a continuous function of x Symbolically, P (x- 1 2 d x X x+ 1 2 d x )=f(x) d x where f(x) is called the pro
Options
- A1 2
- B1 4
- C3 4
- D1 8
Correct answer
B. 1 4
Step-by-step solution
P (x 1 2 )= _ x=0 ^ 1 / 2 f(x) d x= ₀^ 1 / 2 2 x d x= [x^2 ]₀^ 1 / 2 = 1 4