ProbabilityHard
Question
An urn contains 5 white and 3 black balls and 4 balls are drawn at random. The probability of getting white and black balls equal in number is-
Options
A.1/7
B.2/7
C.3/7
D.None of these
More Probability Questions
A mapping is selected at random from all the mappings defined on the set A consisting of three distinct elements. The pr...Lot A consists of 3G and 2D articles. Lot B consists of 4G and 1D article. A new lot C is formed by taking 3 articles fr...In a binomial distribution , if the probability of at least one success is greater than or equal to , then n is greater ...The probability that a man will remain alive for the next 25 years is 4/5 and the probability that his wife will remain ...If n different objects are distributed among n + 2 persons, then...