In a Pizza Hut, the following distribution is found for a daily demand of Pizza, Find the expected daily demand.
No. of Pizzas: `5\ \ 6\ \ 7\ \8\ \9\ \10`
Probability:`\ \0.07\ \0.2\ \0.3\ \0.3\ \0.07\ \0.06`

Check the following distributions of probability of random variable X is the probability distributions? X :\ \ 0\ \ 1\ 2 P(X): 0.6\ 0. 4\ 0. 2

Which of the following distributions of probability of random variable X are the probability distributions? X :\ \ 0\ 1\ \ 2\ 3 P(X): 0.3\ 0. 2\ 0. 4\ 0. 1

Prove that the following distributions of probability of random variable X are the probability distributions? X :\ 0\ \ 1\ 2\ 3\ \ 4 P(X): 0.1\ \ 0. 5\ \ 0. 2\ \ 0. 1\ \ 0. 1

Determine which of the following can be probability distributions of a random variable X : X :\ 0\ 1\ 2\ 3\ \ 4 P(X):\ 0. 1\ \ 0. 5\ 0. 2\ \ -0. 1\ \ 0. 3

Find the mean and standard deviation of the following probability distribution: x_i :\ -1\ \ 0\ \ 1\ 2\ \ 3 p_i :\ \ 0. 3\ 0. 1\ 0. 1\ \ 0. 3\ 0. 2

Find the mean and standard deviation of the following probability distribution: x_i :-3\ \ -1\ 0\ \ 1\ \ 3 p_i :\ \ 0. 05\ \ 0. 45\ \ 0. 20\ \ 0. 25\ 0. 05

A dealer in refrigerators estimates from his past experience the probabilities of his selling refrigerators in a day. These are as follows: No of refrigerators sold in a day: 0 1 2 3 4 5 6 Probability 0.03 0.20 0.23 0.25 0.12 0.10 0.07 Find the mean number of refrigerators sold in a day.

Find: the 8th term of the G.P. 0. 3 , 0.06 , 0.012 ,

A random variable has the following probability distribution: 1 2 3 4 5 6 7 8 For the events E=[X : X is a prime number ],\ F={X : X<4} , the probability P(EuuF) is 0. 50 b. 0. 77 c. 0. 35 d. 0. 87

Evaluate: 0.0133 div 0.07