5,395 Answered Questions for the topic probability

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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Probability Geometry

05/10/20

In its monthly report, the local animal shelter states that it currently has 24 dogs and 18 cats available for adoption. Eight of the dogs and six of the cats are male.

What is the probability that two pets randomly picked will both be male?What's the probability that they are both cats?What's the probability that you pick a cat then a dog?I really don't... more
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Probability

05/10/20

need help with determining cumulative distribution functions
The problem is:The amount of data, X, arriving at a communication channel, consisting of one main channel and two overload channels, is modelled by a continuous random variable which is uniformly... more
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Probability Statistics Stats

05/10/20

suppose 20 individuals are randomly selected from a large population of voters of which 40% are democrats. what are the probabilities that:
a) exactly 10 of the selected voters are democrats?b) at least 10 are democrats?c) at most 10 are democrats?d) between 8 and 12, inclusive are democrats?e) how many of the voters selected could we... more
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Probability

05/10/20

PLEASE HELP ME SOLVE THIS
The cost of a ticket to the circus is $15.00 for children and $38.00 for adults. On a certain day, attendance at the circus was 1,100 and the total gate revenue was $34,900. How many children and... more
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Probability Statistics

05/10/20

Statistics and probability

An archer shoots arrows at a circular target where the central portion of the target inside is called the bull. The archer hits the bull with probability 1/32. Assume that the archer shoots 96... more
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Probability

05/10/20

Find the probability
A package of 6 fuses are tested where the probability an individual fuse is defective is 0.05. (That is, 5% of all fuses manufactured are defective).(a) What is the probability one fuse will be... more
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Probability

05/10/20

Finding probability
Suppose that 3% of computer chips produced by a certain machine are defective. The chips are put into packages of 20 chips for distribution to retailers. What is the probability that a randomly... more
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Probability

05/10/20

Finding probability

Suppose an airline accepted 12 reservations for a commuter plane with 10 seats. They know that 7 reservations went to regular commuters who will show up for sure. The other 5 passengers will show... more
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Probability

05/10/20

Finding probability

A company prices its hurricane insurance using the following assumptions:(i) In any calendar year, there can be at most one hurricane.(ii)In any calendar year, the probability of a hurricane is... more
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