Probability - practice problemsProbability is the measure of the likeliness that an event will occur. The probability (chance) is a value from the interval <0;1> or in percentage (0% to 100%) expressing the occurrence of some event. 0 is an impossible event, and 1 (100%) means the certainty event.
Number of problems found: 413
- A single
A single, standard number cube is tossed. What is the probability of getting a number greater than 3?
- Distribution function
X 2 3 4 P 0.35 0.35 0.3 The data in this table do I calculate the distribution function F(x) and then probability p(2.5 < ξ < 3.25) p(2.8 < ξ) and p(3.25 > ξ)
- A pizza
A pizza place offers 14 different toppings. How many different three-topping pizzas can you order?
- Five identical
Five identical coins are tossed. What is the probability of more than one head?
- What fraction
What fraction of numbers 1 to 30 is prime?
The player gets eight cards of 32. What is the probability that it gets a) all four aces b) at least one ace
- Probability 80854
A coin is tossed 24 times. Find the probability of getting 16 heads. (The probability of getting a head is 0.5)
- 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.
- Two dice
What is the probability that when the roll of two identical dice is the sum of points 7?
The lottery is 60000 elk, in which 6200 wins. What is the probability that the purchase of 12 elks won nothing?
- Binomial probability
What is the binominal probability that at least 4 of the six trials (n=6) are succeeded where φ = 0.50?
- Double six-six
What is the probability that a player in the games of ludo will throw a double six twice?
We threw ten times playing dice. What is the probability that the six will fall exactly four times?
- Roll the dice
What is the probability that if we roll the dice, a number less than five falls?
The probability that the bulb can operate 4000 hours is 0.3. What is the probability that exactly one of the eight bulbs can operate 4000 hours?
- Correctly 20713
Out of 30 tasks, Peter solved 24 correctly. Find success rate in percent.
- Probability 18073
Determine the probability that three balls, ten red, and ten blue balls, will be drawn from 3 balls of the same color.
- Probability 7628
The probability that six will fall in just three rolls is once?
- 20 balls
20 colored balls in a bag: Four red Seven green Nine yellow What is the probability of picking a yellow ball?
We throw five times the dice. What is the probability that six fits exactly twice?