760 Answered Questions for the topic Probability & Statistics

Probability & Statistics

06/24/17

What are the chances of rolling a 3 on one die and then rolling the die and obtaining a 4

Probability question 
Probability & Statistics

06/21/17

How many arrangements are there of the word probability

Probability
Probability & Statistics

06/20/17

Probability that neither will score

When Laura and Michelle play in the hockey team, the probability that's Laura will score is 1/3 and that Michelle scores is 1/2. Find the probability that NEITHER will score in the next game. 
Probability & Statistics

06/20/17

What is P(A'+B)

If P(A)= 0.2, P(B)= 0.5 and P(AxB)= 0.1    Find P(A'+B) 
Probability & Statistics

06/19/17

What is the probability that Natasha got it right?

Billy answers on average 5 questions right out of 7. Natasha's average is 5 questions out of 9. They both attempt the same problem. If the question is answered correctly, what is the probability... more
Probability & Statistics

06/17/17

Suppose that at an airport security checkpoint, 1 in 50 people are randomly selected for a search.

Suppose that at an airport security checkpoint, 1 in 50 people are randomly selected for a search. If there are 33 people ahead of you in line, what is the probability that you will be the first... more
Probability & Statistics

06/15/17

A standard pair of six-sided dice is rolled. What is the probability of rolling a sum less than or equal to 4?

A standard pair of six-sided dice is rolled. What is the probability of rolling a sum less than or equal to 4?
Probability & Statistics

06/04/17

A baseball team has 12 players the coach needs to choose 3 to sit on the bench how many combinations of players can the coach choose? Show me the formula please

need to find the formula for probability of a team with 12 players 3 have to sit on the bench how many combinations does the coach have show formula please
Probability & Statistics

05/26/17

Probability Question

A radio disc jockey has 7 songs on this upcoming hour's playlist: 3 are rock songs, 2 are reggae songs, and 2 are country songs. The disc jockey randomly chooses the first song to play, and then... more
Probability & Statistics

05/26/17

Probablity

A science class has 7 girls and 5 boys in the seventh grade and 4 girls and 4 boys in the eighth grade. The teacher randomly selects a seventh grader and an eighth grader from the class for a... more
Probability & Statistics

05/25/17

What are the odds of this occurring?

There are numbers from 1 to 2500. There are 625,000 people. What are the chances that 3 people pick the same 4 numbers?The order does not matter and the people cannot repeat.
Probability & Statistics

05/24/17

Find the z-score that corresponds to the 30th percentile.

How to you find this answer using a ti-84 calculator.
Probability & Statistics Normal Distribution

05/23/17

If a normal distribution has a mean of 65 and Standard deviation of 8. What score bounds the 19.8% below the mean?

I know how to solve the normal distribution in terms ofBelowBetween Two numbersAnd above the numberBut i don't know how to solve this with this kind of question.
Probability & Statistics

05/22/17

Suppose there are 1000 first-year students at a certain university.

Two hundred are taking French but not statistics, one hundred are taking statistics but not French, and another 50 are taking both French and statistics. If you pick a student at random, find the... more
Probability & Statistics

05/22/17

Brett makes a putt about 65% of the time. What is the probabilty that brett's first m9iss will be on his 5th putt?

Brett makes a putt about 65% of the time. What is the probabilty that brett's first miss will be on his 5th putt?  
Probability & Statistics

05/12/17

a random sample of n=9 scores is obtained from a normal population with μ=40 and σ=18. what is the probability that the sample mean will be greater than M=43?

a random sample of n=9 scores is obtained from a normal population with μ=40 and σ=18. what is the probability that the sample mean will be greater than M=43?  
Probability & Statistics

05/08/17

If a sample consists of the following data values, what is the sample mean?

13, 91, 44, 68, 54, 16, 88, 74
Probability & Statistics

05/08/17

Five people buy individual insurance policies

Five people buy individual insurance policies. According to the research, the probability of each of these poeple not filing a claim for at least 5 years is 2/3. The probability that all 5 have not... more
Probability & Statistics

05/03/17

The relationship between heavy alcohol use and family violence is +0.075.

The relationship between heavy alcohol use and family violence is +0.075. This shows:a. There is an inverse relationshipb. There is a strong relationship between alcohol use and family violencec.... more
Probability & Statistics

05/03/17

There was a strong negative relationship between X and Y. What does this mean?

There was a strong negative relationship between X and Y. What does this mean?
Probability & Statistics

05/03/17

If you flip a coin three times, what is the probability (represented in percent) of getting three heads?

If you flip a coin three times, what is the probability (represented in percent) of getting three heads?
Probability & Statistics

05/03/17

What is the probability (represented in percent) of selecting a Queen from the deck of cards after a person has already selected a Queen and did not put it back

What is the probability (represented in percent) of selecting a Queen from the deck of cards after a person has already selected a Queen and did not put it back in the deck?
Probability & Statistics

05/03/17

You toss two dice simultaneously. What is the approximate probability (represented in percent) that you will obtain two 6’s on a single toss?

You toss two dice simultaneously. What is the approximate probability (represented in percent) that you will obtain two 6’s on a single toss?
Probability & Statistics

04/29/17

if there is a war in every 10 year then what is the probability that there will be no war in 25 year?

THIS QUESTION IS FROM PROBABILITY.PLEASE SOLVE AND REPLY.

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.