Probability
What is the probability of getting heads three times in a row when flipping a coin?
1/8th
In a lottery, there are 10 prizes and 25 blanks. A lottery is drawn at random. What is the probability of getting a prize?
2/7
Two dice are tossed. The probability that the total score is a prime number is:
5/12
A die is rolled, find the probability that an even number is obtained.
1/2
Two coins are tossed, find the probability that two heads are obtained.
1/4
A die has sides 1 through 6. Kevin wants to roll two die, and roll a 6 on both. What is the probability he will roll two sixes?
1/36th
A die is rolled and a coin is tossed, find the probability that the die shows an odd number and the coin shows a head.
1/4
A card is drawn at random from a deck of cards. Find the probability of getting the 3 of diamond.
52 cards in a deck
1/52
A jar contains 3 red marbles, 7 green marbles and 10 white marbles. If a marble is drawn from the jar at random, what is the probability that this marble is white?
1/2
A jar contains 100 marbles, identical except that 30 are red, 20 black, 5 green and the rest white. If a marble is taken from the jar at random, what is the probability that the marble is red?
make sure to simplify
3/10
A fruit basket has 45 fruits. there are 17 apples, 18 grapes, 4 bananas, and 6 lemons. What is the probability of Nate choosing a lemon, replacing it, then choosing an apple?
34/675
Two cards are drawn at random from a pack of 52 cards.what is the probability that either both are black or both are queen?
55/221
A bag contains 6 white and 4 black balls .2 balls are drawn at random. Find the probability that they are of same color.
7/15
Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 3 or 5?
9/20
A problem is given to three students whose chances of solving it are 1/2, 1/3 and 1/4 respectively. What is the probability that the problem will be solved?
3/4
In a bag full of small balls, 1/4 of these balls are green, 1/8 are blue, 1/12 are yellow and the remaining 26 white. How many balls are blue?
6
Three coins are tossed. What is the probability of getting at most two heads?
7/8
What is the probability of getting a sum of 9 from two throws of a dice?
1/9
In a box, there are 8 red, 7 blue and 6 green balls. One ball is picked up randomly. What is the probability that it is neither red nor green?
1/3
A bag contains 2 red, 3 green and 2 blue balls. Two balls are drawn at random. What is the probability that none of the balls drawn is blue?
10/21
A bag contains 30 pieces of candy. There are 15 grape, 7 cherry, 3 lemon, 5 strawberry. What is the probability of drawing a lemon?
1/10th
In a survey, it is found that 10 out of 13 people walk to the office. 3 people are selected randomly. What is the probability that all three walk to the office?
6/1716
In a pack of 52 cards, a card is drawn at random without replacement. Find the probability of drawing a queen followed by a jack.
4/663
A weighted coin is altered so the probability of it landing on a head for each flip is 5/7 . The trick coin is flipped 3 times. What is the probability of getting a tail on the first flip and heads on the next two flips?
50/343
Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 3 or 5?
9/20