A couple is thinking about having 3 children. Assume that each child is equally likely to be a girl or a boy. What is the probability that exactly 2 of the children are girls? 0.125 0.25 0.375 0.5

Q: A salesman finds he can make one sale for every four calls he makes. If he makes five sales calls,…

A: Let, X=the number of sales he makes n=number of trials= 5 p=probability of success= 1/4=0.25 X…

Q: The probability that a car owner has a convertible is 0.3, a sedan is 0.2, and both a convertible…

A: Given data, P(Convertible)=0.3 P(Sedan)=0.2 P( convertible and a sedan)=0.1 P( convertible or a…

Q: A lie detector is known to be 70% reliable when the person is guilty and 95% reliable when the…

A: Find the probability

Q: In a hospital, the probability of male births is 0.4. a) What is the probability that the number of…

A: Solution: 4. Let X be the number of female births and n be the sample number of births. From the…

Q: A salesman finds he can make one sale for every four calls he makes. If he makes five sales calls,…

A: Let, X=the number of sales he makes n=number of trials= 5 p=probability of success= 1/4=0.25 X…

Q: Suppose that it is equally likely for a couple to have a boy or a girl.   (a) Suppose a couple has…

A: Consider that, equally likely for a couple to have a boy or a girl. (a) Consider that  couple has…

Q: John takes 2 coins at random from 4 quarters, 5 dimes, and 3 nickels in his pocket. A) what is the…

A: There are totally 12 coins in John pocket out of which 4 quarters, 5 dimes, and 3 nickels.

Q: Approximately 5.3% of Americans have French heritage. If you randomly select 350 Americans and ask…

A: Obtain the approximate probability that less than 3% of them to have French heritage. The…

Q: An aerospace company has submitted bids on two separate federal government defense contracts. The…

A: Given, Probability of winninng first contract = 0.40 Probability of winning seconnd contract given…

Q: The time it takes to travel from home to the office is normally distributed with μ = 25 minutes and…

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Q: The probability that Isabelle will go trick-or-treating is .4. The probability that she will go…

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Q: An aquarium at a pet store contains guppies (6 females and 8 males) and tetras (14 females and 22…

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Q: In a local college, 70% of students have a part-time job outside of school. Suppose that we want to…

A: Solution: Let X be the number of students have a part-time job outside of school and n be the sample…

Q: In chemistry class, there are 10 boys and 20 girls. 5 of the boys and 12 of the girts got at least…

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If…

Q: 50 people were asked to participate in a survey about their families. Of the people that…

A: Probability=favourable outcomesTotal number of outcomes favourable outcome = 5 Total number of…

Q: When spinning a spinner, there is an equal chance of landing on orange, green, yellow, red, and…

A: when spinning a spinner, there is an equal chance of landing on orange,green,yellow,red and…

Q: Joseph is applying for admission to a university he must complete a written application and then…

A: Given that: Probability of been approved on a written application is p(A) =0.55 The probability of…

Q: The American Red Cross says that about 89% of the U.S. population does NOT have Type B blood. A…

A: Obtain the probability that exactly 2 of the first 20 blood donors have Type B blood.   The…

Q: Q5- The weekly average number of airplane crashes is 1. Whatis the probability that there will be…

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Q: 35. Carl's basketball shooting records indicate that for any frame, the probability that he will…

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Q: Assume that the probability of any newborn baby being a girl is - and that all births are…

A: We have to find probability of  all girl....

Q: b.) At Big State University, 70% of incoming freshmen will graduate by the end of their first four…

A: (b)   (i)   Obtain the probability of having exactly 850 graduate in four years.   The probability…

Q: The probability that a patient recovers from a rare blood disease is 0.4. If 15 people are known to…

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Q: One card is selected at random from a deck of cards. Determine the probability that the card…

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Q: The probability that the head of a household is home when a telemarketer calls is 0.4. Given that…

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Q: Suppose you have 10 drinks, 6 regular and 4 diet, in a cooler. You select two at random. Answer the…

A: Provided data are, Total 10 drinks…

Q: The probability that a management trainee will remain with a company is 0.60. The probability that…

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Q: A man has 5 blue and 4 yellow balls in a bag. Without looking in the bag, he takes out a ball,…

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Q: A couple decided to have 5 children. (a) What is the probability that they will have at least one…

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Q: Q1. A couple decides to continue to have children until they have three daughters. Assuming that the…

A: Here, the probability of success is p=0.54. Thus, according to the negative binomial distribution,…

Q: A couple decided to have 3 children. (a) What is the probability that they will have at least one…

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Q: Among the seniors at a certain high school, 65% attendedthe prom and 45% went on the senior trip,…

A: Concept of General Addition Rule: For any two events A and B the General Addition Rule states…

Q: What is the probability that a person selected has more than two siblinsg?   A=20%   B=30%   C=40%…

A: The probability that a person selected has more than two siblings will be: P(2 or more sibling)…

Q: The probability that a house in an urban area will be burglarized is 6%. If 48 houses are randomly…

A: LetX be no of houses burglarized out of 48 P be proportion that house will be…

Q: Michonne plays basketball and has a 38%38% field goal shooting percentage. If she takes 8 shots in a…

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Q: . In a class, 30% of the students study math (M) and science (S). 70% of the students study math…

A: It is given that the 30% of the students study math (M) and science (S) i.e. the probability that…

Q: A survey of Pittsburgh residents found that 92.3% are Steelers fans, 3.4% are Eagles fans, and 2.1%…

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Q: A committee of three people must be chosen from 11 sophomores and 7 juniors. What is the probability…

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Q: Julie is taking two books with her on vacation. Suppose the probability she likes the first book is…

A: a. The probability that she likes at least one of the books is, Thus ,the probability that she…

Q: A couple decided to have 4 children. (a)  What is the probability that they will have at least two…

A: Couple has decided to have 4 children. Probability of a child being boy = Probability of a child…

Q: Imagine you have an unbalanced coin, which weights more on one side, which causes that the…

A: Binomial distribution: The binomial distribution gives the probability of number of successes out of…

Q: 2.) If you choose 40 students what is the probability that their height is above 155 cm? A.) 0.1190…

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Q: A box contains 500 envelopes of which 75 contain P1000 in cash, 150 contain P500, and 275 contain…

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Q: A couple decided to have 3 children. (a) What is the probability that they will have at least two…

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Q: An insurance company finds that each week an average of 5 claims are filed in their Shah Alam…

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Q: A pharmaceutical company claims that a drug is effective in treating 90% of people having severe…

A: Given P=0.9 q=0.1 n=6 x=5

Q: the 1st toss is 0.25. The probability of a bullseye on the 2nd toss is 0.20. The probability of a…

A: Probability is defined as the total number of favorable cases of an event divided by the total…

Q: The probability that 140 or fewer workers find their jobs stressful is Part 2 of 3 The probability…

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Q: Determine the probability of having 1 girl and 3 boys in a 4​-child family assuming boys and girls…

A: Binomial distribution: The probability mass function (pmf) of a binomial random variable X is given…