One hundred thirty boys and 130 girls were asked if they had ever been frightened by a television program. Twenty of the boys and 70 of the girls said they had been frightened. One of these children is selected at random. (Enter your probabilities as fractions.) (a) What is the probability that he or she has been frightened? (b) What is the probability the child is a girl, given that he or she has been frightened?

Q: You go second in a three player game in which each player starts with three chips. Give your answers…

A: a)The probability that you have 6 chips afer your turn is complete=6C31728C6b) The probability that…

Q: If you randomly select a card from a well-shuffled standard deck of 52 cards, what is the…

A:

Q: There are 2000 autos, 4000 taxis, and 6000 buses in a city. A person can choose any one of these to…

A:

Q: One hundred thirty boys and 130 girls were asked if they had ever been frightened by a television…

A: There are total (130+130)=260 children Among them (40+70)=110 were frightened.

Q: company selling substandard drugs to developing countries sold 3,000,000 capsules with 210,000 of…

A:

Q: a. At LUG, 30% of students are majoring in Business. i. In a sample of 10 LUG students, what is the…

A: Given that,   Probability, p= 0.30   (i). If sample size is, n= 10  Then X~Binomial(10,0.30) p.m.f…

Q: Bonami High School has 82 juniors at its school. There are 29 students enrolled in Spanish class and…

A: Total students in school is 82 number of students enrolled in spanish class is, n(S) = 29number of…

Q: My father is an avid reader. On any given day he is reading multiple items. Suppose on any given…

A: a) For any two events A and B, it is known that P(A ∪ B) = P(A)  + P(B) – P(A ∩ B).

Q: a. A gambler states the “odds” against some event as 3 to 1. What is the probability that the event…

A: a) Given data: The given odd against some event is x=3:1. The expression for the odd against some…

Q: The guidance department has reported that of the senior class, 2.3% are members of key club, K, 8.6%…

A: Given that      P(K)  = 2.3%  = 2.3/100     P(P)    = 8.6%  = 8.6/100   P(K and P)  = 1.9%  =…

Q: A restaurant critic has 10 new food trucks to try. If she tries half of them this week, what is the…

A: The probability formula is, Probability=Number of favourable outcomesTotal outcomes A restaurant…

Q: rons jeans and sneaker emporium had 80 customers. 50 bought a pair of jeans, 45 bought sneakers and…

A: Obtain the probability a customer bought jeans or sneakers. The probability a customer bought jeans…

Q: The guidance department has reported that of the senior class, 4.3% are members of Key Club, K, 7.6%…

A: Here, P(K) =0.043 P(P) =0.076 P(Both)=0.019

Q: A card is drawn from a deck of 52 playing cards. Given that it is a red card, what is the…

A:

Q: Roughly 75% of students take the bus to school. If you were to ask 9 students in your class, what is…

A: Given,n=9p=0.75Let X=no.of students take the buse to schoolX~Binomial(n=9 , p=0.75)P(X=x)=9x…

Q: Maya bought 8 seeds in order to plant a herb garden for her grandma. Of the seeds she bought, 6 were…

A:

Q: 4. Tom has a dollar's worth of dimes and a dollar's worth of nickels in his pocket. a. What is the…

A: 1 dollar has total of 10 dimes and  1 dollar has total of 20 nickels Probability = event in…

Q: One ball is drawn at random from a bag containing 2 red balls and 6 white balls. (Enter your…

A:

Q: You are dealt 5 cards from a deck of 52 cards. a) What is the probability that you are dealt exactly…

A: It was stated that I have dealt 5 cards from a deck of 52 cards. Need to find the following…

Q: A university has 20,000 students. The student have ages with the following probabilities: 40% are…

A:

Q: What is the probability of selecting a public school if you choose one school at random from the…

A: The probability of selecting a public school if you choose one school at random from the data can be…

Q: In a random survey of students concerning student activities, 31 engineering majors, 27 business…

A: Find probability

Q: 322 chickens on a farm lay brown eggs and 326 chickens on the farm lay white eggs. If a chicken is…

A: The total number of outcomes is 322+326 =648. The number of favourable outcomes is 326.

Q: In a group of 100 students, 60 are freshman, 60 are female, and 25 are female freshman. 1. What is…

A:

Q: A car rental firm has 455 cars. Sixty-four of these cars have defective turn signals and 36 have…

A: Probability quantifies the chances of happening an event. The probability values always lie in the…

Q: A group of volleyball players consists of four grade-11 students and six grade-12 students. If six…

A: Probability is the chance of occurrence of an event.

Q: (a) What is the probability that a respondent is male? (b) What is the probability that a respondent…

A: As per our guidelines, we are allowed to answer three subparts per question, Please ask part d a s…

Q: One ball is drawn at random from a bag containing 4 red balls and 8 white balls. (Enter your…

A: Given that a bag contains 4 red balls & 8 white balls.

Q: Mrs. Bothe filled out a bracket for the NCAA National Tournament. Based on her knowledge of college…

A:

Q: 6. In a certain town, 5% of people commute to work by train. If a person is selected randomly from…

A: here use basic formula of odds

Q: (a) What is the probability that the airline can accommodate everyone who shows up for the flight?…

A: Here given Airlines sometimes overbook flights. Suppose that for a plane with 100 seats, an airline…

Q: A ball is drawn from a bag containing 11 red balls numbered 1-11 and 5 white balls numbered 12-16.…

A:

Q: A nylon connector manufacturing plant yields 15 % defective items. If 1000 connectors are randomly…

A: Let us define X as the number of defectives follows Binomial distribution with n=1000 and p=0.15.…

Q: In a city, assume 25% of citizens are smokers. When 20 people in the city are randomly surveyed,…

A: Solution: a. Let X be the number of people are smokers and n be the sample number of people. From…

Q: . What is the probability he will end up with five cards of the same suit?

A: let Charlie draws five cards out of a deck of 52. If he gets at least three of one suit, he discards…

Q: You are planning a three-day trip to Seattle, Washington, in October. Use the fact that on each day,…

A: The pmf of the binomial random variable with parameters n = 3 and p = 0.5 is given as follows:

Q: Zane is ordering a sundae at a restaurant, and the server tells him that he can have up to five…

A:

Q: a. What is the probability that the random selected person is a female? b. What is the probability…

A: Given:   Total number of person=n(S) =347

Q: -plications in Our World On one large campus, 18% of students surveyed said that they spend less…

A: Obtain the probability that all three spend less than an hour a night studying.   The probability…

Q: A box of 12 batteries has 3 defective ones. (Enter your probabilities as fractions.) (a) If 2…

A: Given: A box of 12 batteries has 3 defective ones and 2 batteries are drawn from the box together.

Q: In a family of eight children, what is the probability that (a) the third child is a girl? (b) six…

A: It was stated that in a family there are eight children. Need to find the probability of the…

Q: i Min and her mother are playing a board game. The spinner has four equal sections with a different…

A: Given, Colors are red,green,yellow,purple. Total no of colors=4 P(color is purple)=?

Q: 5. Clarice has 7 new CDs; 3 are classical music and the rest are pop music. If she randomly grabs 3…

A: Clarice has 7 CD's in which 3 are of classical music and 4 are of pop music. She randomly selects 3…

Q: You draw at random five cards from a standard deck of 52 cards. What is the probability that there…

A: Let us denote the events A: The five cards picked contains an ace. K: The five cards picked contains…

Q: In a sample of college students, 100 live on campus, 60 live with family off campus, and 40 live in…

A: From the given information, it can be interpreted that the required probability of obtaining a…

Q: F- Female $688 G- Male $1000 H- Male $892 1. Ifall the salaries were written on separate pieces of…

A: (1) Obtain the probability that the one that drawn is over $650. The probability that the one that…

Q: (b) Deandre has a box of candies with different flavors. He will randomly choose one piece of candy.…

A: Odds against are the ratio of number of failure outcomes to the number of success outcomes.

Q: you do not put the first card back in the deck before you draw the next, what is the probability…

A:

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.