The probability that a student selected at random from class will pass in Mathematics is 4/5, and the probability that he/she passes in Mathematics and Computer Science is 1/2 . What is the probability that he/she will pass in Computer Science if it is known that he/she has passed in Mathematics?

The probability that a student selected at random from class will pass in Mathematics is 4/5, and the probability that he/she passes in Mathematics and Computer Science is ½. What is the probability that he/she will pass in Computer Science if it is known that he/she has passed in Mathematics?

Probability that Hameed passes in Mathematics is 2/3 and the probability that he passes in English is 4/9. If the probability of passing both courses is 1/4. What is the probability that Hameed will pass in at least one of these subjects?

Sameer throws , an ordinary die . What is the probability that he throws 2 or 5 ?

In a school 25% students are failed in Mathematics, 15% in Physics and 5% students fail in both Mathematics and Physics. A student is selected at random. (i) If he is fail in Physics, find the probability that he is fail in Mathematics. (ii) If he is fail in Mathematics, find the probability that he in fail in Physics. (iii) Find the probability that he is fail either in Mathematics or in Physics.

The probability that a person will travel by plane is 3/5 and that he will travel by train is ¼. What is the probability that he (she) will travel by plane or train?

The probability that a person will get an electric contact is 2/5 and the probability that he will not get plumbing contract is 4/7 . If the probability of getting at least one contract is 2/3 , what is the probability that he will get both.

A class has 12 boys and 4 girls. If three students are selected at random from the class, what is the probability that all will be boys?

The probability that Sunil will recelve a D in is matchematics course is 0.61 and the probability that he will receive a C is 0.28. What is the probability tat Sunil will receive a C or D in mathematics ?

The probability that a person will get an electric contract is 2/5 and the probability that they will not get plumbing contracts 4/7dot if the probability of getting at least one contract is 2/3 , what is the probability that he will get both?

In a college, 70% students pass in Physics, 75% pass in Mathematics and 10% students fail in both. One student is chosen at random. What is the probability that: He passes in Physics given that he passes in Mathematics.