5,341 Answered Questions for the topic probability

Probability Statistics

05/14/20

solve this question !!
A company makes car batteries and claims 80% of its ABC batteries are good for 70 months orlonger. Assume that this claim is true. Let ˆp be the proportion in a sample of 100 such ABCbatteries.... more
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Probability

05/13/20

A pet store has 13 ​puppies, 4 ​poodles, 4 ​terriers, and 5 retrievers.

If Rebecka selects one puppy at​ random, the pet store replaces the puppy with a puppy of the same​ breed, then Aaron chooses a puppy at random. Find the probability that they both select a poodle.
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05/13/20

Probability: Or Question Without Replacement in a Deck of Cards
What is the probability of drawing a Queen or Heart, not replacing it, then drawing a Five Card?
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Probability

05/13/20

What are the chances of seven hits out of seven trials on a 15% chance?
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05/13/20

A teacher-student committee consisting of 4 people is to be formed from 5 teachers and 20 students. Find the probability that the committee will consist of at least one student.
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Probability Math Statistics Economics

05/13/20

The table below gives the bushels of corn per acre resulting from the use of various amounts of fertilizer in pounds per acre:
n (1st column) BUSHELS OF CORN PRODUCED (Y) (2nd column) AMOUNT FERTILIZER USED (X) (3rd column) 1 (n) 4 (y) 6 (x) 2 44 10 3 46 12 4 48 ... more
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Probability Math Algebra 2 Algebra

05/13/20

Please help me, need to know how to do this problem, please I’m desperate

This season, the probability that the Yankees will win a game is 0.49 and theprobability that the Yankees will score 5 or more runs in a game is 0.53. Theprobability that the Yankees win and score... more
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Probability

05/13/20

What are the odds against you choosing a person from the children or teen category? (children group has 3), (teen group has 2) (young adult group has 2) , (adult group has 5), (senior group has 3)
Can you please show the steps? Thank you.
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Probability Statistics

05/13/20

Solve this problem
The average age of a breed of dog is 19.4 years. If the distribution of their ages is normal and20% of dogs are older than 22.8 years, find the standard deviation.
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Probability Statistics

05/13/20

solve this problem!
A study found that 25% of car owners in Fiji had their cars washed professionally rather than doit themselves. If 18 car owners are randomly selected, find the probability that at most twopeople... more
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Probability Algebra 2

05/13/20

Help on Probability
There are twelve shirts in your closet, five blue, three green, and four red. You randomly select a different shirt each day. You wear a blue shirt on Monday, a green shirt on Tuesday, and a red... more
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Probability Geometry

05/12/20

A man is creating a super strong four-letter password for his phone. He can use can use any letter and they cannot repeat. How many possible passwords can he make?
I'm not sure I'm doing this correctly but would you do26*25*24*23 = 358800I get confuse using the slot method but i would hope someone could help explain.
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Probability

05/12/20

You have a 1 in 4 chance of winning a game. How would you calculate the probability that you will win 3 times in a row?
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Probability Geometry

05/12/20

How many odd integers greater than 500 and less than 1000 have an even digit in the tens place?
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05/12/20

what is the likelihood a pack of gummy bears will contain between 37 and 45 candies?
the number of pieces in a pack of gummy bears is normally distributed with a mean of 35 and a standard deviation of 4. if a package is chosen at random what is the likelihood it will contain... more
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Probability Statistics Mathematics

05/12/20

solve these question please......!
A company produces batteries. On average, 85% of all batteries produced are good. Eachbattery is tested before being dispatched, and the inspector correctly classifies the battery 90%of the... more
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Probability Statistics Maths

05/12/20

Please solve this question......!
The following data give the numbers of new cars sold by Carpenters Motors Limited during a20-day sale. 8 5 12 3 9 10 6 12 8 8 4 16 10 11 7 7 3 5 9 11A.... more
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Probability

05/12/20

Need help on probability
In a factory, one worker produces an average of 175 units per day with a standard deviation of 20. Another worker produces at an average rate of 165 per day with a standard deviation of 21. What is... more
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Probability

05/11/20

probability and statistics
Suppose that n people throw their hats in a box and then each picks up one hat atrandom. Let X be a random variable which is defined as the number of people that getback their own hat.a.) Find... more
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Probability

05/11/20

1. If you rolled a number cube 900 times, predict how many times you would roll a 2 or 5. Explain your answer.
how many times would you roll a 2 or a 5
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Probability Geometry

05/11/20

what is the probability?
In a shipment of 8 small motors, 2 are known to be defective . Suppose that one motor is removed from the shipment and found to be defective . If another motor is randomly selected, what is the... more
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Probability

05/11/20

Seems like a factorial or something like that.
Virginia’s population is about 8,400,000. Its nursing home population is about 27,500 people. Over 50% of covid 19 deaths occur in nursing homes. There have been 839 total deaths. What are the odds... more
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Probability Math Maths Mathematics

05/10/20

Please Help Me With These Two Way Tables For Math!!!
The two way table below shows the amount of time students spent studying for their Chemistry test and the grade they earned on the test. 0 - 50  51 - 70  71 - 90 91 - 100 Totals 0 - 1... more
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Probability Math Maths Mathematics

05/10/20

What is the probability that the student checks out a fiction or non-fiction book?
A student goes to the library. The probability that she checks out a fiction book is 0.45, a work of non-fiction book is 0.28, and both fiction and non-fiction book is 0.10. What is the probability... more
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Probability Math Maths Mathematics

05/10/20

What is the approximate probability that a randomly selected person will be attending the football game given they are an upper-class student? PLEASE HELP!
At Lewisville University, they are looking into how often students attend football games. Here are the results: ● ·45% of students regularly attend the football games ● Of those that attend... more
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