Two unbiased dice are thrown. Then the probability that neither a doublet nor a total of 10 will appear is
Two dice are rolled simultaneously. The probability that the sum of the two numbers on the dice is a prime number, is
A random variable X has the following probability distribution
then F(4) =
Rajesh has just bought a VCR from Maharashtra Electronics and the shop offers after sales service contract for Rs. 1000 for the next five years. Considering the experience of VCR users, the following distribution of maintenance expenses for the next five years is formed.
The expected value of maintenance cost is :