A survey of 127 consumers found that 81 had a tablet computer, 70 had a smartphone and 29 had both a smartphone and a tablet computer. a Find the number of consumers surveyed who had neither a smartphone nor a tablet. b Find the probability that when choosing one of the consumers surveyed at random, a consumer who has only a smartphone is chosen. c In a population of 10000 consumers, predict how many would have only a tablet computer.

Q: A sixth grade class has 30 students. 15 of those students play baseball, 18 play basketball, and 10…

A: As per the rules of probability, PA∪B=PA+PB-PA∩B, where PA∪B denotes either A or B or both. PA ∩B…

Q: From experience, an airline knows that only 85% of the passengers booked for a certain flight…

A: Given Information :  From experience, an airline knows that only 85% of the passengers booked for a…

Q: An advertising company has 12 men and 8 women. Suppose the company needs to select a team of 5…

A: Given that Total member=12+8=20 Men member=12 Women member=8 5 member are selected at random

Q: A committee of 3 people is to be randomly selected from a group of 8 people, including Sarah.…

A: To Determine: The probability that Sarah is selected to be on the three-person committee.

Q: In a survey in a rural area, it is found that 32% of families from a barrio owns a milking cow and…

A: Given: Family owns a milking cow, P(A)=0.32. Family owns a poultry, P(B)=0.41. Family owns both,…

Q: A financial services committee had 60 members, of which 8 were women. If 7 members are selected at…

A: a. The probability that 6 men and 1 woman are selected is 0.4217 and it is obtained below: From the…

Q: An ice chest contains 4 cans of apple juice, 6 cans of grape juice, 6 cans of orange juice, and 8…

A: Probability of any event can be given by as P = no. Of favorable cases/, total no of cases

Q: Suppose that 60% of all consumers favour internet shopping. If 5 consumers are randomly sampled and…

A: We have given that,  X be the random variable from binomial distribution with probability of success…

Q: At a local college, 76 of the male students are smokers and 114 are non-smokers. Of the female…

A: GivenFor male:- No.of smokers = 76No.of non-smokers=114Total no.of male students = 190For…

Q: In a family with 4 children, excluding multiple births, what is the probability of having 2 girls…

A: Probability is ratio of favourable chances to total chances. Total chances = S Favourable chances =…

Q: In a class of 50 students, 29 are Democrats, 11 are business majors, and 5 of the business majors…

A: It is given that in a class of 50 students, 29 are Democrats, 11 are business majors, and 5 of the…

Q: In a class of 37 students, 17 are taking an AP test, 15 are taking an IB test and 6 are taking both.…

A:

Q: at a university with 200 students, 32 play soccer, 18 play basketball and 8 play both sports. if a…

A: Given that 32 students play soccer, 18 students play basketball There are total (32+18) = 50…

Q: In a math class of 30 students, 17 are boys and 13 are girls. On a unit test, 4 boys and 5 girls…

A: Given,no.of boys=17no.of girls=13total no.of students=30

Q: In one town, 44% of all voters are Democrats. If two voters are randomly selected for a survey, find…

A: Given that, 44% of all voters are Democrats.  Sample size, n = 2

Q: A batch of parts contains 80 parts from Batangas and 120 parts from a supplier of engine in Bulacan.…

A: The total number of parts are 200 Let Event B: The part is from Batangas and event C the part is…

Q: out of 80 births in a local hospital estimate the probability of girls born is between 32 girls and…

A: Continuity correction factor table: If   P(X=n) use   P(n – 0.5 < X < n + 0.5)If   P(X > n)…

Q: The probability that a house in an urban area will be burglarized is 3%. If 22 houses are randomly…

A: Answer: Given that: p= 0.03 , n= 22 now will use Binomial probability…

Q: From a group of graduate students including 21 men and 11 women, 26 are chosen to participate in an…

A: Given Information: Number of men = 21 Number of women = 11  Total  = 21 +11 =32

Q: household in a city choosing a sedan over other vehicle types is 38%. If 7,591 households in the…

A:

Q: A survey revealed that 31% of people are entertained by reading books, 39% are entertained by…

A:

Q: In a second grade class containing 14 girls and 11 boys, 2 students are selected at random to give…

A:

Q: At a local college, 182 of the male students are smokers and 728 are non-smokers. Of the female…

A:

Q: Of a group of patients having injuries, 28% visit both a physical therapist and a chiropractor and…

A:

Q: A financial services committee had 6060 ​members, of which 1010 were women. If 99 members are…

A: Solution: a. From the given information, a financial committee had 60 members. Among them 10 are…

Q: Suppose that a department contains 8 men and 12 women. A committee with six members is to be formed,…

A:

Q: a jury of 16 people is selected from 24 people: 12 women and 12 men. What is the probability (to the…

A: From the provided information, A jury pool consists 24 people. Total men = 12 Total women = 12

Q: A financial services committee had 60 ​members, of which 10 were women. If 9 members are selected…

A:

Q: suppose that 90% of students take math, 20% of students take chemistry and 15% take both. select a…

A:

Q: At a high school with 200 students, 32 play football, 18 play basketball, 8 play both sports. If a…

A:

Q: At a college, 71% of courses have final exams and 45% of courses require research papers. Suppose…

A:

Q: In a group of 100 students, 80 study Physics, 90 study Math and 5 study none of the subjects. What…

A: The union of events A and B is defined as n(A ∪ B) = n(A)  + n(B) – n(A ∩ B).

Q: In a ninth grade homeroom class, 3 of the 16 girls have red hair and 2 of the 15 boys have red hair.…

A: Given: Number of girls = 16 Number of boys = 15 Number of girl having red hair = 3 Number of boy…

Q: A financial services committee had 6060 ​members, of which 1010 were women. If 99 members are…

A: According to the provided information, the committee had 6060 people, of which 1010 were a woman.…

Q: It is known that in a batch of milk cartons, 30% are underfilled. In a sample of six milk cartons…

A: Given that the batch of milk cartons underfilled is 30% and there are sample of six milk cartons.…

Q: find the probability that only three have traveled to Italy.

A: Let p be the probability that a tourist have traveled to Italy. Given that p = 0.55 Let X denotes…

Q: In a recent survey, 80% of the citizens in a community favored the building of a post office. If 15…

A: Solution

Q: A high school choir has 42 members, of which 21 are tenors. What is the probability that a randomly…

A: We have given that,  Total number of members = 42 Total number of tenors = 21 Then,

Q: At a high school with 200 students, 32 play soccer, 18 play basketball. 8 students in this group…

A: Solution: From the given information, 32 play soccer, 18 play basketball and 8 play both sports.…

Q: Of the 8000 students in Hunter College, 5000 takes statistics, 2600 takes chemistry, and 800 takes…

A: Of the 8000 students in Hunter College, 5000 takes statistics, 2600 takes chemistry, and 800 takes…

Q: If a classroom of 32 students has 7 males (5 of who are single and 2 who are married) and 25 females…

A: Given,no.of single males=5no.of married males=2no.of single females=7no.of married females=18total…

Q: A survey by Altgeld Travel Magazine found that 85% of airline passengers prefer to sleep during…

A: Solution: 6. a. Let X be the number of passenger prefer to sleep during their flights and n be the…

Q: A debating team of size 4 is to be randomly selected from 3 academic staff and 6 students. The…

A: We have to select a team of size 4 from the 3 academic staffs and 6 students and we have to find the…

Q: According to the survey of American households, the probability that the household owns Smart 3D…

A: Given information: Denote the event that the household owns smart 3D HDTV as D. Denote the event…

Q: In a large population, 53% of the people have been vaccinated. If 3 people are randomly selected,…

A: In a large population, 53% of the people have been vaccinated. i.e. Probability that the people have…

Q: In a survey of 150 investors who had recently purchased shares: 85 said they had bought share A, 70…

A: Here,PA=85150PB=75150Pneither A nor B=PA∩B=35150

Q: n a group of 100 students, 80 study Physics, 90 study Math and 5 study none of the subjects. What…

A:

Q: Of the patients at a cardiac rehabilitation centre, 36% lead a sedentary lifestyle and have had a…

A:

Q: Suppose that 40% of boys opted for mathematics and 60% of girls opted for mathematics. What is the…

A: Define the events as: B: The student is a boy B' : The student is not a boy (the student is a girl)…

Q: The probability that a house in an urban area will be burglarized is 5​%. If 85 houses are randomly​…

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.