A family has four children. What is the probability that exactly 3 of the children are girls? In this problem, let X = number of female children.  How many different combinations are there of having three girls in a family of four children? What is the probability of one of these combinations occurring? Report your answer to four decimal places. Putting the answers to the previous two questions together, what is P(X=3), the probability that a family of four has three girls? Report your answer to two decimal places.

Q: A group of people were asked if some psychics can help solve murder cases. 220 responded "yes", and…

A: Answer:- Given, Number of respondents who said "yes", n(Yes) = 220  Number of respondents who said…

Q: If there are 20 women waiting on a line to win basketball tickets, and the probability of a man…

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Q: You have a 4 sided die (with numbers 1,2,3, and 4) that you are going to throw. You are told that…

A: Here the given information is You have a 4 sided die (with numbers 1,2,3, and 4) that you are going…

Q: Suppose the probability of having a boy or a girl is equally likely.  In 6 births, what is the…

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Q: The probability that an individual is​ left-handed is 0.130. In a class of 25 ​students, what is…

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Q: In a large population, 59% of the people have been vaccinated. If 5 people are randomly selected,…

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Q: In a particular area 40% of men and 15% of women are overweight and there are four men and three…

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Q: There are 18 students, from which 9 people will be selected to be on a panel. If Allen and Joe are 2…

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Q: n the game of chess there are 32 pieces: 2 kings, 2 queens, 4 rooks, 4 bishops, 4 knights, and 16…

A: Game of chess there are 32 pieces: 2 kings, 2 queens, 4 rooks, 4 bishops, 4 knights, and 16 pawns We…

Q: If the probability that an event does no occur is 0.3 determine the probability that the event…

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Q: A group of people were asked if some psychics can help solve murder cases. 153 responded "Yes", and…

A: It is given that 153 people responded “Yes” and 452 responded “No”. The total number of people is…

Q: Suppose that 10% of people own dogs. If you pick two people at random, what is the probability that…

A: From the provided information, 10% of people own dogs that is p = 0.10 Sample size (n) = 2 X~B (2,…

Q: There are 20 students, from which 6 people will be selected to be on a panel. If Allen and Joe are 2…

A: Given information- We have given that out of 20 students, from which 6 people will be selected to be…

Q: Airline flights from Boston to Atlanta are on time 50 % of the time. Suppose 6 flights are randomly…

A: Solution: Let X be the number of flights are on time and n be the number of airline flights from…

Q: A physics class has 40 students. Of​ these, 16 students are physics majors and 18 students are…

A: GivenTotal No. of students=40No.of physics majors=16No.of female =18No.of females and physics…

Q: A survey of Indiana, PA residents finds that 68% like Bob's Sub, 83% like Culpepper's, and 56% like…

A: Let A be the event that the residents like Bob's Sub and B be the event that residents like…

Q: In the game of blackjack played with one deck, a player is initially dealt 2 different cards from…

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Q: A group of people were asked if life exists elsewhere in the galaxy. 336 responded "Yes", and 400…

A: The number of people believe in existence of life elsewhere in the galaxy is 336. The number of…

Q: In a large population, 61% of the people have been vaccinated. If 5 people are randomly selected,…

A: From the given information, Sample size (n) = 5, Probability of success (p) = 0.61.

Q: When making random guesses on an 6 question quiz the probability of guessing correctly on any one…

A: Let p be the probability of guess the correct answer p=0.25 n=6  Let X be the number of correct…

Q: At a sports camp, it was found that 80% of students play soccer, 71% of students play baseball, and…

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Q: Suppose that 24% of people own dogs. If you pick two people at random, what is the probability that…

A: Given 24% of people own dogs

Q: A carnival game consists of choosing a rubber duck from a kiddie pool. If the duck has a red dot on…

A: There are 10 ducks in the pool, and 2 of them have red dots.

Q: Suppose that 14% of people own dogs. If you pick two people at random, what is the probability that…

A: Answer: Given that: p=P(people own dogs)= 0.14 , n= 2 now will use Binomial probability…

Q: The probability that an individual is​ left-handed is 0.190. In a class of 27 ​students, what is…

A: From the provided information, Sample size (n) = 27 Probability that an individual is left-handed…

Q: If the probability that a randomly chosen college student takes statistics is 0.34, then what is the…

A: The probability that a randomly chosen college student takes statistics is 0.34. The probability…

Q: Suppose that 25% of people own dogs. If you pick two people at random, what is the probability that…

A: Solution:- from given information probability of people own dogs is 25%    p=0.25 random sample n =…

Q: There is a survey having only 2 options(yes/no).The survey has 7 questions and the person answering…

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Q: A woman plans to have two children. The probability that each child is a boy is 0.525, and the birth…

A: Given,P(a baby boy)=0.525P(a baby girl)=1-0.525=0.475

Q: A group of people were asked if giving children sugar makes them hyper. 621 responded "Yes", and 650…

A: Probability:   The ratio of the number of favorable outcomes to certain event and total number of…

Q: flipped. If it shows heads, you draw a marble from shows tails, you draw a marble from urn B with 3…

A: Given: P(H)=0.7 P(T)=0.3 Heads-Urn A-1 Blue and 4 red Tails- Urn B- 3 blue and 1 red

Q: When making random guesses on an 8 question quiz the probability of guessing correctly on any one…

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Q: You need two pieces of string at least 48 cm long for your next craft project. You have one piece of…

A: The total length of the string is 139. The total number of possible values is 139. The number of…