Problem 1
The probability that \(A\) happens is \(1 / 3\), The odds against happening of \(A\) are (a) 2:1 (b) \(2: 3\) (c) \(3: 2\) \((d) 5: 2\)
Problem 2
The odds in favour of an event \(A\) are 6 to 4 . The probability of success of \(A\) is (a) \(4 / 5\) (b) \(5 / 9\) (c) \(4 / 9 .\)
Problem 4
A buys a lottery ticket in which the chance of winning is \(1 / 10 ; B\) has a ticket in which his chance of winning is \(1 / 20\). The chance that atleast one of them wins is (a) \(1 / 200\) (b) \(29 / 200\) (c) \(30 \times 00\) (d) \(170 / 200 .\)
Problem 6
The probability of getting 2 or 3 or 4 from a throw of single dice is...
Problem 7
The mean of the Bincmial distribution with \(n\) observations and probability of success \(p\), is (a) \(p q\) (b) \(n p\) (c) \(\sqrt{n p}\) (d) \(\sqrt{p q}\).
Problem 8
If the mean of a Poisson distribution is \(m\), then S.D. of this distribution is (a) \(m^{2}\) (b) \(\sqrt{m}\) (c) \(m\) (d) none or these.
Problem 9
The S.D. of the Binomial distribution is (a) \(\sqrt{n p y}\) (b) \(\sqrt{n p}\) (c) \(n p q\) (d) \(D Q\).
Problem 10
In a Poisson distribution if \(2 P(x=1)=P(x=2)\), then the variance is (a) 0 (b) \(-1\) (c) \(A\) \((\) d) 2 .
Problem 13
If \(P(A)=0.36, P(B)=0.73\) and \(P(A \cap B)=0.14\), then \(P\left(A \cap B^{\prime}\right)=\ldots\)
Problem 18
The mean, median and mode of a normal distribution are...
