Assume that 2 cars in 11 is defective and will not start. If at different times 4 individuals each randomly select a car to test drive, what is the probability that at least 1 of them selects a car that will not start?

Q: A deck of 52 cards contains four aces. If the cards are shuffled and distributed randomly to four…

A: A deck of 52 cards contains four aces and we have to find the probability that all four aces willbe…

Q: Suppose that a pond contains 50 fish of which 30 are redfish. If we catch 10  with replacement,…

A: 30 of 50 fishes in the pond is redfish. So, probabiility of getting a redfish = 30/50 = 0.6. Hence…

Q: Imagine that 60 passengers on a cruise ship might be carrying a rare virus, and government health…

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Q: There are 32 applicants for a job in a finance consultancy and auditing firm for 20 vacant posts. Of…

A: Given that  Total applicants = 32  Vacant posts = 20 Women = 10 Men = 22

Q: In a sample of 50 people, 19 had type O blood, 22 had a type A blood, 7 had type B blood, and 2 had…

A:

Q: 4. Among the contestants in a competition are 42 women and 28 men. If 4 winners are randomly…

A:

Q: A poll is given showing 80% are in favor of a new project if 5 people are chosen at random, what…

A:

Q: Three students from a 13 student class will be selected to attend a meeting. 9 of the students are…

A:

Q: A shipment of 9 typewriters contains 3 that are defective. Find the probability that a sample of…

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Q: An urn contains 5 green, 1 red, and 2 blue balls. Two balls are taken from the urn, one after the…

A: From the given information,An urn contains 5 green, 1 red, and 2 blue balls.Total number of balls is…

Q: Suppose that all license plates in a state have three letters and then four digits. If a plate is…

A: There are 10 digits [0-9]  and 26 letters [A-Z]   We can pick each letter in 26 ways and each digit…

Q: robability that both envelopes are red is

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Q: 4. Bowl A contains 60 black chips and 40 white chips. Fifty of these 100 chips are selected at…

A: Given,no.of black chips=60no.of white chips=40total no.of chips=100

Q: If 10 percent of the balls in a certain box are red, and if 20 balls are selected from the box at…

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Q: An after-school club sonsists of 10 juniors and 12 seniors. If 2 students are chosen at random to…

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Q: Three students from a 21 student class will be selected to attend a meeting. 8 of the students are…

A: The number of female students is 8 and the total number of students is 21.

Q: e another math class = d. Between 28 and 33 (including 28 and 33) of them need to take another math…

A: Let X be the random variable such that number of students at a college who needed to take another…

Q: Suppose that a shipment contains 5 defective items and 10 non defective items.  If 7 items are…

A: From the provided information, A shipment contains 5 defective items and 10 non defective items.…

Q: Suppose that 70% of the people coming out of a particular exit of 1000th Street Station are…

A: Suppose that 70% of the people coming out of a particular exit of 1000th Street Station are…

Q: Suppose that 45% of all babies born in particular hospitals are girls. If 7 babies born in the…

A: Givenn=7p=0.45x=no.of baby girls

Q: a sample of 20 patients randomly (without replacement) from 500 patients to evaluate adherence to a…

A: Given:  (N) number of patients = 500 (n) number of sample size =20

Q: A group of 30 people is selected at random. What is the probability that at least 2 of them will…

A: Given : A group of 30 people is selected at random.   Question : What is the probability that at…

Q: Consider a collection of envelopes consisting of 1 red envelope​, 2 blue envelopes​, 2 green…

A: Given,no.of red envelopes=1no.of blue envelopes=2no.of green envelopes=2no.of yellow…

Q: A group of 20 people is selected at random. What is the probability that at least two of them have…

A: The probability that 1st person having the birthday is 365/365.The probability that 2nd person…

Q: If 10 people choose, at random, a letter from the English alphabet of 26 letters, what is the…

A: We find the probability that each of the 10 people chooses a different letter from the English…

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.