Three houses are available in a locality. Three persons apply for the houses. Eachapplies for one house without consulting others. The probability that all the three applyfor the same house is
2.
A random variable X has Poisson distribution with mean 2. Then P ( x > 1.5 ) equals
3.
Let A and B be two events such that P ( A̅ ∪ B̅ ) =61, P ( A̅ ∩ B̅ ) =41andP (A) = 1/4, where A̅ stands for complement of event A. Then events A and B are
4.
Let x1, x2, ….., xn be n observations such that Σ xi 2= 400 and Σxi = 80. Then apossible value of n among the following is
5.
Probability that A speaks truth is 4/5 while this probability for B is 3/4. Theprobability that they contradict each other when asked to speak on a fact is
