Ex3: At a certain university, 4% of men are over 6 feet tall and 1% of women are over 6 feet tall. The total student population is divided in the ratio 3/5 in favor of men. If a student is selected at random from among all those over six feet tall, what is the probability that the student is a woman?

Q: Suppose that 34% of people own dogs. If you pick two people at random, what is the probability that…

A: No.of people select at random = 2 The probability of one person own dogs is, P(one person own dogs)…

Q: Thirty percent of students in a college are Freshmen. In a random sample of 15 students form the…

A:

Q: Find the odds in favor of an event and odds against event S.  For Samsung ships 23.5 percent of the…

A: A: Samsung shipsP(A)=23.5%=0.235P(Ac)=1-P(A)=1-0.235=0.765

Q: Jeri is listening to the songs on a new CD in random order.  She will listen to two different songs,…

A:

Q: 13% of US residents are in their 30s. consider a group of 9 US residents selected at random. find…

A: It is given that the 13% of US residents are in their 30s i.e. the prob. that US residents are in…

Q: If the probability of having a female tortoise is 0.35, what is the probability of having four…

A: Given that,  The probability of having a female tortoise is, p = 0.35 The no.of eggs in a nest is, n…

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

A:

Q: You roll a​ six-sided die. What is the probability of rolling a 6 or a number greater than 3? What…

A: We want to find the probability

Q: The probability of getting exactly 1 girl in 8 births

A: Let the random variable x is number of girls. The probability of getting a girl and boy are equal.…

Q: On a grocery store shelf, there are 16 loaves of white bread and 15 loaves of wheat bread. A shopper…

A: The objective of this question is to find the probability that a shopper randomly selects a loaf of…

Q: In a statistics class of 42 students, there were 11 men and 31 women. Six of the men and seven of…

A:

Q: In a large population, 53 % of the people have been vaccinated. If 4 people are randomly selected,…

A: Given information- Given problem is of binomial distribution. Probability of success, p = 0.53 No.…

Q: A company manufactures calculators in batches of 64 and there is a 4% rate of defects. Find the…

A: Givensample size(n)=64p=0.04Let "x" be the no.of defects in a batchx~Binomial(n=64 ,…

Q: Suppose that 38% of people own dogs. If you pick two people at random, what is the probability that…

A: Given that, Probability, p = 38% = 0.38 Sample size = 2

Q: The probability of rain tomorrow in Gander is 40%. What are the odds of rain tomorrow?

A: Given data: The probability of rain tomorrow in Gander is 40%.  i.e ; p = 0.40 To find : What are…

Q: A teacher of a class of 25 students is trying to decide whether her class will play soccer, or…

A:

Q: The probability that a house in an urban area will be burglarized is 6​%. If 47 houses are randomly​…

A:

Q: Suppose the probability of purchasing a defective smart phone is 0.04. What is the probability of…

A: Introduction: Denote X as the number of defective smart phones obtained in a purchase of 20 smart…

Q: d) The probability of a household size being three OR six is %.

A: From the above table,  P(3)= 0.158 and P(6)= 0.024

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: It has been reported that 48% of people text and drive. A random sample of 60 drivers is drawn. Find…

A: The z-score is calculated by using: Where,

Q: The probability a German speaks English is 56%. If five Germans are randomly selected from across…

A: The probability a German speaks English is 56% i.e., Five Germans are randomly selected from across…

Q: An introductory nursing class has 9 freshman males, 15 freshman females, 8 sophomore males, and 12…

A: Given data, freshman males=9 freshman females=15 sophomore males=8 sophomore females=12 Total =44…

Q: A coin is tossed, then the spinner shown is spun. The blue segment is twice as big as the yellow…

A:

Q: What is the probability of rolling a die and rolling a 2 or a 3 or a 4?

A: The probability of an event can be defined as follows:

Q: The Wilson family had 6 children. Assuming that the probability of a child being a girl is 0.5, find…

A: Let n be the number of children's in a family = 6 Let p be the probability of a child being a girl =…

Q: university study involves a simple random sample of 26 students taken from a population of​ 12,550.…

A: Given that Simple random sample size (n) = 26 Population size  = 12,550 Undergraduate students make…

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.