The probability that a student passes a physics test$\frac{2}{3}$. If he takes three physics test, what is the probability that he passes two of the tests?

In a class of 60 students, 30 offers physics and 40 offers chemistry. If a students is picked at random from the class, what is the probability that the student offer both physics and Chemistry?

Find the probability that a number picked at random from the set {43, 44, 45, - , -, -, 60} is a prime number

If three unbiased coin are tossed, find the probability that they are all heads

The probability of a student passing any examination is $\tfrac{2}{3}$.If the student takes three examinations. What is the probability that he will not pass any of them?

The result of rolling a fair die 150 times is as summarized in the table below

The probability of picking a letter T from the word OBSTRUCTION is

In a basket, there are 6 grapes, 11 bananas and 13 oranges. If one fruit is chosen at random, what is the probability that the fruit is either a grape or a banana?