Random Variables and Probability Distributions

JEE Main Mathematics · Probability · 5 questions, latest first

• If a random variable x has the probability distribution then P(3<x ≤ 6) is equal to202622 January, Shift 1 · Q8
• If the probability that the random variable X takes the value x is given by P(X=x)=k(x+1) 3^-x, x=0,1,2,3 …, where k is a…20253 April, Shift 2 · Q8
• A fair die is tossed repeatedly until a six is obtained. Let X denote the number of tosses required and let a=P(X=3), b=P(X ≥ 3)…202427 January, Shift 1 · Q29
• Let the probability of getting head for a biased coin be 1/4. It is tossed repeatedly until a head appears. Let N be the number…202311 April, Shift 2 · Q30
• If the probability that the random variable X takes values x is given by P(X=x)=k(x+1) 3^-x, x=0,1,2,3, …, where k is a constant,…20238 April, Shift 2 · Q17