260 Answered Questions for the topic Probability Problems

My friends and I (there are 9 of us altogether) are trying to pick 4 of us to play on a quiz bowl team. How many ways can we choose the team?

My friends and I (there are 9 of us altogether) are trying to pick 4 of us to play on a quiz bowl team. Howmany ways can we choose the team?

There are four people in a room. For every two people, there is a 50% chance that they are friends.

Contituatio of the above question......   Two people are connected if:?they are friends, or?a third person is friends with both of them, or?they have different friends who are friends of each... more

Probability of dependent event- marble problem

Question : there are 4 blue marble labelled P, 7 blue marbles labelled Q, 3 green marbles labelled P, 9 green marbles labelled Q. Two marbles are drawn at random from the box. Find the probability... more

Please Help me to answer this question. Justify your answer please

A student council has five seniors, four juniors, three sophomores, and two freshmen as members. In how many ways can a four member council committee be formed that includes one member of each class?

Please help me to answer these questions for cumulative distribution of the random variable X

The cumulative distribution of the random variable X is given by G(x) = 0                    for x<0            3x2-2x3          for 0≤x<1            1                   for x ≥1 a)Find the... more

Probability of Independent Events

A student ran out of time on a multiple choice exam and randomly guessed the answers for two problems. Each problem had 4 answer choices - a, b, c, d - and only one correct answer. What is the... more

Probability and Data Analysis

There is a stack of 8 cards, each given a different number from 1 to 8. Suppose we select a card randomly from the stack, replace it, and then randomly select another card. What is the probability... more

Probability and Data Analysis

So a spinner has 5 equally sized sections, 3 of which are gray and 2 of which are blue. The spinner is spun twice. What is the probability that the first spin lands on gray and the second spin... more

a website requires each user to create a 4 digit identification number. each digit can be any whole number 0 through 9. what is the probability of guessing a us

a website requires each user to create a 4 digit identification number. each digit can be any whole number 0 through 9. what is the probability of guessing a user identification number in one... more

Please help me solve this

Suppose that events E and F are independent, P(E) equals0.6, and P(F)equals0.7. What is the Upper P left parenthesis Upper E and Upper F right parenthesis?

Find the probability that you are not dealt a card with number from 3 to 8

Find the probability that you are not dealt a card with number from 3 to 8.   Help please. Thank you

Probability

Toss a coin 5 times. What is the probability that there are exactly 2 Heads and 3 tails?   Five men and three women applied for 2 scholarships. What is the probability that both the winnerswill... more

Find the probability of picking one of each four colours in the first tries without the marbles being replaced.

A bag contains 10 red marbles, 3 blue marbles, 7 white marbles, and 5 green marbles. find the probability of picking one of each four colours in the first tries without the marbles being replaced.

What is the probability of her picking two heart cards?

Ella is picking two cards from a deck of cards that contain only heart and spade cards. Based on her record, she has a 30% chance of picking a heart card if it's a red card first and a 60% of... more

Assume you get an average of 2 texts per hour on a weekend. Find the probability that in any one hour interval there will be:

a.) 0 textsb.) Exactly 2 textsc.) At most 3 texts **Show your work for each part of the problem, please!

Can you please solve this as I don’t understand

Bob has 30 sweets He has  18 fruit sweets 7 aniseed sweets 5 mint sweets   Bob is going to tak out two random sweets what is the probability the two sweets will not be the same type of sweet

Probability of winning raffle with multiple tickets (max one win each)

I have 90 tickets in a raffle.20,000 people have bought tickets.Each person has bought between between 60 and 100 tickets.The total number of tickets sold is 1,360,000 giving an average of 68... more

If randomly selected student is in the math team, what is the probability that they are also in the debating club

In a group of 30 students it is found that 6 students belong to both the math team and debate club, 9 belong to the math team only and 7 belong to the debating club only.

Mostly confused on how to find the sum of "at least" 5.

Suppose you randomly draw two cards from a standard deck and roll a pair of dice. Determine the probability that you draw 2 black cards and roll a sum of at least 5. 

A High school baseball player has a 0.321 batting average. (This means the probability that they will get a hit in any one at-bat is 0.321)

A High school baseball player has a 0.321 batting average. (This means the probability that they will get a hit in any one at-bat is 0.321). In one game, the player gets 7 at-bats. What is the... more
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