The probability that a student entering  university will graduate is 0.4. Find the probability that out of 3 students of the university: (i) none will graduate, (ii) only one will graduate, (iii) all will graduate.

The probability that a students entering a university will graduate is 0.4. Find the probability that out of 3 students of the university (i) none will graduate (ii) only one will graduate (iii) all will graduate.

The probability that a student is not a swimmer is 1/5 . What is the probability that out of 5 students, 4 are swimmers?

The probability that the life of a bulb is 100 days is 0.05. Find the probability that out of 6 bulbs (i) atleast 1 (ii) greater than 4 (iii) none will be having a life of 100 days

The probability that a student will receive A, B, C or D grade or 0.40, 0.3, 0.1 and 0.10 respectively. Find the probability that a student will receive. i. B or C grade ii. at most C grade.

Two students Anil and Ashima appeared inan examination. The probability that Anil will qualify the examination is 0.05 and that Ashima will qualify the examination is 0.10. The probability that both will qualify the examination is 0.02. Find the probability that: (i) bothAnil and Ashima will not qualify the examinatiion. (iii)only one of them willl qualify the examination.