Probability - math word problems - page 10 of 27

Number of problems found: 536

Black car probability
Oskar observes the arrivals and departures of cars in the parking lot. At one point, there were 99 cars in the parking lot: 25 red, 17 white, and the rest were black. What is the percentage probability that a black car was leaving the parking lot at a giv
Marbles 3
Paisley has a bag of 16 green, orange, and yellow marbles. If there are eight green marbles, how many marbles have to be yellow for P(yellow) = 1/4?
Probability of picking
There are 5 chocolate, 3 cottage cheese, and 2 apricot croissants in the bag. Croissants are randomly selected in bags. What is the probability of drawing 1 chocolate, 1 cheese, and 1 apricot croissant without returning?
Testing 5
Viktória has many T-shirts - 3 white, 1 yellow, 3 blue, 2 green, 4 pink, 1 black, 2 orange. Which of the following statements is true? A: It is equally probable that Viktória will put on a white T-shirt as a pink T-shirt. B: It is more probable that Viktó
6 married
Six married couples are in a room. If two people are chosen at random. Find the probability that; a). they are married. b). one is male, and one is female.
Ticket number probability
There are 100 tickets in a pocket with the numbers 1 to 100. What is the probability that we will randomly draw a ticket with a number starting with the number 5?
Ball pocket probability
There are seven red balls and 13 blue balls in the pocket. How many blue balls do we need to add to the pocket so that the probability of removing the red ball is 0.2?
Three sigma rule
Stomach weights are normally distributed, with a mean of 1314 g and a standard deviation of 113 g. State the probability that a randomly selected stomach weighs more than 1118 g. (Report the probabilities using at least four decimal places. )
All multiples
Set A is a set of all multiples of 2, and set B is a set of all multiples of 3. If the P (A)=0.6 and P (B)=0.3. Find P (AUB).
Prime number probability
We randomly draw one out of 18 cards with numbers from 1 to 18. What is the probability that the ticket drawn is a prime number? Write the result as a decimal number rounded to two decimal places.
Ticket divisible probability
Petra wrote the natural numbers from 1 to 20 on 20 tickets. Millie pulls out one ticket. What is the probability that she pulls out a ticket with a number divisible by three?
Probability
Zuzana has 5 playlists with different music styles on her mobile phone. The table shows their names and the number of songs they contain. Fill in the missing number so that a rock song plays first with a probability of 21% when the shuffle function is use
Two-digit same digits
What probability does a randomly drawn two-digit number have the same digits? Write the result as a decimal number.
Probability RGB
The bag has six red, five green, eight blue, and 11 yellow balls. What is the probability that we will pull out a green ball?
Banker client probability
The banker deals, on average, with five clients a day. Find the probability that the number of clients (in one day) will be greater than 4.
Probability
Two duelists have agreed to meet at a designated location between 6:00 and 7:20. One of them will wait 8 minutes after arriving and then leave. The other will wait for his opponent for 16 minutes and then leave. What is the probability that the duel will
Employee sample probability
Out of 3,000 employees of a certain company, 1,800 are men. The management decided that on the occasion of the company's anniversary celebration, it will give special rewards to 10 randomly drawn employees. What is the probability that the sample will be
Dice color probability
In an opaque box, identical cubes of different colors: 15 are red, 8 are blue, and 7 are green. We successively drew 10 red, 4 blue, and 3 green dice. What is the probability that we draw a red die from the remaining dice in the next roll?
Card sum probability
There are tickets with the numbers 1, 2, 3, 4, 5, 6, 7, and 8 in the envelope. Two tickets are drawn from the envelope at a time. What is the probability that the sum of the numbers drawn will be 7? Write the result as a decimal rounded to hundredths.
Shooter hit probability
The shooter fired 100 times at a target. He had four times as many hits as misses. What was the probability of a hit in percent?

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