Probability - practice for 14 year olds
Number of problems found: 187
- A box
A box contains 6 red, 5 blue, and 4 white balls. Find the probability of drawing a) a red ball and b) a non-white ball. - Roll the dice
What is the probability that if we roll the dice, a number less than five falls? - Probability 82362
If we roll one die, what is the probability of rolling a number other than 1? - Correctly 20713
Out of 30 tasks, Peter solved 24 correctly. Find success rate in percent. - 20 balls
20 colored balls in a bag: Four red Seven green Nine yellow What is the probability of picking a yellow ball? - Three dice
What is the probability that when we roll three dice, we roll the number 1,2,3? - Five brown
Five brown eye contracts, seven green pairs, and four blue pairs. What's the probability Gianna will randomly select a brown or green pair? - A six-sided
A six-sided die is rolled once. What is the probability that the number rolled is an even number greater than two? - Ace or king
What is the probability that we will choose an ace or a king when choosing from a deck of sevens cards? - Six on dice
When throwing two dice, what is the probability they will fall at least one six? - Probability 81678
What is the probability of guessing a PIN code (4 numbers) if it contains only even numbers? - Probability 81446
What is the probability that each digit is different in a five-digit number? - Probability 8801
We roll two different dice. What is the probability that a pair of even numbers will fall? - Probability 3278
I have three colors of briefs. White, black, and red. What is the probability that I will choose white briefs? - A coin
Suppose you tossed a coin 12 times. The coin landed on heads 9 times and on tail 3 times. What is the probability of landing on tails? - And-or probabilities
P(A ) = 0.53, P(B) = 0.15, and P(A n B ) = 0.18. Find P(A U B ). Round approximations to two decimal places. - Today in school
There are nine girls and 11 boys in the class today. What is the probability that Suzan will go to the board today? - Prime number
Jan wrote any number from 1 to 20. What is the probability that he wrote the prime number? - First man
What is the likelihood of a random event where are five men and seven women will first leave the man? - Probabilities
If probabilities of A, B, and A ∩ B are P (A) = 0.62, P (B) = 0.78, and P (A ∩ B) = 0.26, calculate the following probability (of the union. intersect and opposite and its combinations):
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