Probability Tes...

The probability of getting number less than or equal to $$6$$, when a die is thrown once, is

The letters of the alphabet are written on $$26$$ cards. Two cards are chosen at random. Find the probability that at least one of them is a vowel?

Two fair coins are tossed. What is the probability that at least one coin lands a tail?

A coin is tossed and a single $$6$$-sided die is rolled. Find the probability of landing on the tail side of the coin and rolling $$4$$ on the die.

From a standard deck of cards, one card is drawn. Find the probability that the card is red and a queen.

You roll a pair of dice. What is the probability of not getting a double on the dice?

If we throw a dice, then the sample space, $$S = {1, 2, 3, 4, 5, 6}$$. Now the event of $$3$$ appearing on the dice is simple and given by

Two fair dice are thrown. What is the probability that the two scores do not add to $$5$$?

A coin is tossed $$100$$ times with the following frequencies: Head : $$20$$. Find the probability for event having heads only.

X and Y are independent events. If the probability event X will occur is $$0.2$$ and the probability event Y will occur is $$0.9$$, calculate the probability that both X and Y will occur.