5,366 Answered Questions for the topic probability

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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Probability

05/10/20

Finding the Probability

A hospital receives 20% of its COVID-19 vaccine shipments from Canada and the remainder of its shipments from neighbouring countries. Each shipment contains a very large number of vaccine vials.... more
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05/08/20

Math Question- Spinner
If you spin the following spinners, how many outcomes are possible? (Below I made the 2 spinners, which are two different spinners. The letters have 5 sections, and the number spinner has 6... more
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05/08/20

Math Question- Probability

Gary randomly chose an item from the following lot: ( “I” stands for ice cream cone , “S” stands for soccer ball, “B” stands for book, and “C” stands for coin.) I I S B B S B C B B I C C I Use this... more
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Probability Math Statistics

05/08/20

This one is a challenge: What is the probability of drawing a “double” from a set of dominoes?
In a set of dominos, each tile has two sides with a number of dots on each side: zero, one, two, three, four, five or six. There are 28 total tiles, with each number of dots appearing alongside... more
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Probability

05/08/20

Probability question
Elizabeth brought a box of donuts to share. There are two dozen donuts all identical size shape and color. 5 are jelly filled, 9 are lemon filled and 10 are custard filled. You randomly select one... more
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Probability

05/07/20

A blindfolded marksman finds that on average he hits the target 70% of the time. If he fires 6 shots, determine the probability of the following 3 situations(round answers to the nearest thousandths):
more than two hitstwo hits or lessexactly two hits
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Probability

05/07/20

Probability, combinations, and permutations
The question is based off the powerball lottery where you must get 5 numbers correctly followed by a powerball number in order to win the grand prize. The 5 numbers are done without replacement and... more
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05/07/20

Math Question Probability

A bag contains 8 red, 6 white, and 10 blue marbles. One of these marbles is to be selected at random from the bag. Complete the table below to show each theoretical probability of picking a... more
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Probability Math Statistics

05/07/20

Mean, variance, and median on World Series
Teams A and B play in a best of 7 series. Team B has a 45% chance of winning each game. Find the mean, variance, and median.
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Probability Statistics

05/07/20

statistic and probability
Gwen, a friend of Mary from the previous question, is also practicing free throws. However, she is trying to score 3 points in a single set. She will keep shooting sets until she has three... more
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