788 Answered Questions for the topic Probability & Statistics

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
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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
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Probability & Statistics

05/04/17

Jessica has 6 red t-shirts and 9 yellow t-shirts. If she picks one t-shirt at random, what is the probability that it will not be yellow?
probability 
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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
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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?
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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?
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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?
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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?
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Probability & Statistics

05/03/17

3. Consider an experiment that involves rolling a fair six-sided twice.
Let X denote the number rolled on the first roll and let Y denote the number on the second. Let A denote the event that the sum of the two numbers rolled is less than or equal to 4. Let B denote... more
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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.
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Probability & Statistics

04/24/17

Statistics
Many people coming into the bakery order sandwiches with 3 condiments. How many different sandwiches with 3 condiments (and 1 type of meat, 1 type of cheese) could be created?
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Probability & Statistics Probability Probability Problems

04/23/17

Three people independently each think of an integer in the set {1,2,3,4,5,6,7}.
Please help I have no idea how to do this question.     Three people independently each think of an integer in the set {1,2,3,4,5,6,7}. Find, in fractional form, the probability that the sum of... more
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Probability & Statistics

04/21/17

The equation of a regression line is ŷ = 3.5x + 4.6. Determine the y - intercept of this line. Type a numerical answer in the provided space. Do not type spaces
Im not sure what you do with this question
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Probability & Statistics Statistics Question

04/21/17

The equation of a best fit line is y = 6x + 9. Predict a value for y when x = 4.
I don't understand how you do this math problem. 
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Probability & Statistics Math Math Word Problem Math Help For College

04/20/17

Let c be the total charge​ (in dollars) for t hours of tutoring. Are t and c linearly​ related?
A math tutor charges $2020 per hour. Let c be the total charge (in dollars) for t hours of tutoring. Are t and c linearly related? If so, find the slope and describe what it means in this... more
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04/19/17

Probability
A computer is programmed to produce at random a single digit from the list 0,1,2,3,4,5,6,7,8,9. The program runs twenty times. Let Y be the number of zeros that occur. a) State the distribution... more
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Probability & Statistics

04/17/17

please help!
The manager of a video game store found that 35 of the 140 people who preordered the latest baseball game canceled their orders the day before the game was released. He used that data to create a... more
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Probability & Statistics

04/17/17

please help! probability
The students at Southern Junior High School are divided into four homerooms. Benjamin just moved into the school district and will be randomly assigned to one homeroom. Which methods can be used to... more
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Probability & Statistics

04/17/17

please help! probability
A restaurant owner has found that 80% of her customers return to the restaurant within two weeks. She wants to create a tool that will simulate the habits of her customers and allow her to predict... more
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Probability & Statistics

04/17/17

please help! probability
April and Sanjay are both using tools to simulate the probability that a family with three children will have exactly one girl. April is using a coin, with tails up representing a boy and heads up... more
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Probability & Statistics

04/17/17

please help! probability
Vince makes 75% of his free throw attempts. He wants to create a tool that will simulate his free throw shooting and allow him to predict the probability that he will make 6 of his next 7 free... more
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Probability & Statistics

04/16/17

A machine produces widgets at a defective rate of 9%. A sample of 8 widgets is taken, What is the probability that 3 of them are defective?
A machine produces widgets at a defective rate of 9%. A sample of 8 widgets is taken, What is the probability that 3 of them are defective?   Explanations would be most helpful!
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Probability & Statistics Probability Statistics Question

04/12/17

What is the probability of choosing 2 white balls and 3 red balls?
a barrel contains 7 yellow balls, 3 green balls, 11 white balls, 5 red balls and 4 orange balls. What is the probability of choosing 2 white balls and 3 red balls?
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Probability & Statistics Probability Probability Problems

04/12/17

Coin probability
A loaded coin, with P(H)= 3/5 and P(T)=2/5 on each single toss, is tossed 6 times. Let E be the event that exactly 3 heads appeared in 6 tosses and F be the event that at least 2 heads appeared in... more
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Probability & Statistics Probability Probability Problems

04/12/17

Probability
In a family of 7 children, let E be the event that the family has at least 3 girls and F be the event that the second born child is a girl. Find the following probabilities: A) P(E)= B) P(F)= C)... more
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