The probability that a student entering the university will graduate is 0.4. Find the probability that out of 3 students of the University: all will graduate. Whay graduation is minimum qualification for all good well paid jobs?

The probability that a student entering the university will graduate is 0.4. Find the probability that out of 3 students of the University: none will graduate.

The probability that a student entering the university will graduate is 0.4. Find the probability that out of 3 students of the University: only one will graduate.

A problem is given to three students, whose chances of solving it are : 1/4, 1/3 and 1/2 respectively. Find the probability that exactly one of them may solve it.

A class consists of 10 boys and 8 girls. Three students are selected at random. Find the probability that the selected group has : all girls.

3 cards are drawn at random from a pack of well shuffled 52 cards. Find the probability that : all the three cards are of the same suit .

A class consists of 10 boys and 8 girls. Three students are selected at random. Find the probability that the selected group has : all Boys.

Consider the frequency distribution table (Table 14.3, Example 4, Chapter 14), which gives the weights of 38 students of a class. (i) Find the probability that the weight of a student in the class lies in the interval 46-50 kg. (ii) Give two events in this context, one having probability 0 and the other having probability 1.

Three students appear at an examination of mathematics. The probability of their success are 1/3,1/4,1/5 respectively. Find the probability of success of at least two.

A box of oranges is inspected by examining three randomly selected oranges drawn without replacement. If all the three oranges are good, the box is approved for sale, otherwise, it is rejected. Find the probability that a box containing 15 oranges out of which 12 are good and 3 are bad ones will be approved for sale.