260 Answered Questions for the topic Probability Problems

09/29/18

#### 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?

09/07/18

#### 15 coupons numbered 1-15,7 are selected at random with replacement, probability 9 will be the largest on selected coupons.

It's from the book m.l Khanna.

09/02/18

#### 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...
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08/20/18

#### 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...
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08/02/18

#### 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?

08/01/18

#### 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...
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07/25/18

#### 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...
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07/25/18

#### 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...
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07/25/18

#### 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...
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07/21/18

#### 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...
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06/19/18

#### 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?

06/19/18

#### 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

06/18/18

#### If two states are selected at random from a group of 10 states, determine the number of possible outcomes if the group of states are selected with replacement

i need the probability

06/17/18

#### 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...
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06/16/18

#### 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.

06/15/18

#### 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...
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06/07/18

#### If you have a circle with a radius of 11 and a smaller circle inside of it with a radius of 4, what is the probability of hitting the smaller circle with a dart

I got 0.132 but it was wrong.

06/07/18

#### 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!

06/05/18

#### 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

06/05/18

#### a bag contains tiles with the numbers 1, 3, 5, ,7 and 9. what is the probability of taking out a tile with an even number

describe the probability of a chance event

05/26/18

#### 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...
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05/24/18

#### 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.

05/16/18

#### how many different signals can be made with 5 flags from 8 of different colors?

math help!!

05/09/18

#### 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.

05/06/18

#### 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...
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