Advertisements
Advertisements
Question
What is the probability of throwing an even number with a single standard dice of six faces?
Solution
Sample space (S) = {1, 2, 3, 4, 5, 6}
n(S) = 6
Let E be the event of getting an even number
E = {2, 4, 6}
n(E) = 3
P(E) = `("n"("E"))/("n"("S"))`
= `3/6`
= `1/2`
APPEARS IN
RELATED QUESTIONS
In fig. 7 is shown a disc on which a player spins an arrow twice. The fraction `a/b` is formed, where 'a' is the number of sector on which arrow stops on the first spin and 'b' is the number of the sector in which the arrow stops on second spin. On each spin, each sector has equal chance of selection by the arrow. Find the probability that the fraction `a/b>1.`
A card is drawn at random from a well shuffled pack of 52 playing cards.
Find the probability that the card drawn is a spade.
A bag contains cards numbered from 1 to 49. A card is drawn from the bag at random, after mixing the card thoroughly. Find the probability that the number on the drawn card is a perfect square
All red face cards are removed from a pack of playing cards. The remaining cards are well shuffled and then a card is drawn at random from them. Find the probability that the drawn card is a red card
A card is drawn from a well-shuffled pack of 52 cards. Find the probability of getting a red face card.
A die is thrown, then find the probability of the following events:
A is an event: getting a perfect square.
B is an event: getting a prime number.
A coin is tossed twice. Find the probability of getting: two heads
A manufacturer tested 7000 LED lights at random and found that 25 of them were defective. If a LED light is selected at random, what is the probability that the selected LED light is a defective one
One ticket is selected at random from 100 tickets numbered 0.0, 01, 02, ……, 99. Suppose x is the sum of digits and y is the product of digits, then the probability that x = 9 and y = 0 is ____________.
Three coins are tossed simultaneously. What is the probability of getting at most one tail?