At a local college, 297 of the male students are smokers and 693 are non-smokers. Of the female students, 180 are smokers and 720 are non-smokers. A male student and a female student from the college are randomly selected for a survey. What is the probability that both are non-smokers?

Q: At one private college, 34% of students are business majors. Suppose that 260 students are randomly…

A: The probability that the proportion of business students in the sample differs from the population…

Q: in a small private school, 4 students are randomly selected from 15 available students. what is the…

A: The number of combinations is: 15C4 = (15! / (4! (15−4)!) 15C4 = 1365

Q: In a small private​ school, 4 students are randomly selected from 11 available students. What is the…

A: Given that, N=11 R=4 Number of youngest students among the available students = 4

Q: Of all college freshman who try out for the track team, the coach Will only accept 30%. If 15…

A: Let X denote the number of freshman try out for the track team and it follows binomial distribution…

Q: In a large population, 54 % of the people have been vaccinated. If 5 people are randomly selected,…

A: Given data: 54% of the people have been vaccinated.

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: Kaja has a dog walking business that serves 9 dogs. If she chooses 4 of the dogs at random to take…

A: Kaja serves 9 dogs out of which 4 dogs named Cherish, Taffy, Haunter, and Maverick have to be chosen…

Q: In one town, 28% of all voters are Democrats. If two voters are randomly selected for a survey, find…

A: Given that, Probability, p = 28% = 0.28 Sample size = 2

Q: At a high school with 200 students. 32 play soccer, 18 play basketball, 8 play both sports, find the…

A: The number of students play soccer is 32.

Q: At a local college, 51 of the male students are smokers and 459 are non-smokers. Of the female…

A: Provided information is, at local college 51 of the male students are smokers and 459 are…

Q: In a large population, 59 % of the people have been vaccinated. If 3 people are randomly selected,…

A: Binomial distribution:It is a discrete probability distribution that has exactly two outcomes for…

Q: A homeowner plants 6 bulbs selected at random from a box containing 5 tulip bulbs  and 4 daffodil…

A: The probability is calculated by dividing the number of observation can involve in the sample…

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 the city, 30% of dogs have brown fur and 50% of dogs have curly fur. If 40% of dogs have fur…

A: Let the event B be the event that dog have brown fur, C be the event that dog have curly fur. Here,

Q: A homeowner plants 6 bulbs selected at random from a box containing 4 tulip bulbs and 4 daffodil…

A: Note: Hi there! Thank you for posting the question. As there are several independent questions,…

Q: In a small private​ school, 6 students are randomly selected from 14 available students. What is the…

A: no of ways selecting r items from n is C(n,r)

Q: In a large population, 69% of the people have been vaccinated. If 5 people are randomly selected,…

A: Given: Sample size (n) = 5 p(people have been vaccinated) = 0.69 Formula: Let "X" be the people that…

Q: Eight percent of Americans have a master’s degree. If five Americans are selected at random, what is…

A: Let X represent random variable   n=5 p=0.08   X~ binomial (5, 0.08)

Q: In a family with 3 children, excluding multiple births, what is the probability of having exactly 2…

A:

Q: Find the probability of randomly selecting 3 students from Utah out of a group of 12 students, 5 of…

A:

Q: of the 4 district congressional races for the Pennsylvania State House of Representatives, the…

A: Given that  Total number of races (n) = 4 Probability of winning (P) = 60% = 0.60 Probability of…

Q: Find the probability distribution for the number of dance collections when 3 collections are…

A: Let X be a random variable which represents the number of dance collections when 3 collections are…

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

A:

Q: Nasa needs to select a 7 person crew for a space mission from 43 applicants of whom are 21 women.…

A: Given data: the total numbers of applicants are n=43. The numbers of persons selected for space…

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

A:

Q: what is the probability all three would be smokers?

A: Let , X be the number of smokers Here , X→B(n=3 , p=0.20) The probability mass function of X is ,…

Q: In a large population, 64 % of the people have been vaccinated. If 4 people are randomly selected,…

A: Proportion of people vaccinated (p) = 0.64 Proportion of people not vaccinated (q) : q=1-pq=0.36 n =…

Q: At a fast-food restaurant, 60% of the patrons order a burger. Of those ordering a burger, 40% also…

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: In a small private​ school, 4 students are randomly selected from 18 available students. What is the…

A: Solution: Given information: n= 18 available students  4 students are randomly selected.

Q: A class consists of 10 males and 30 females. If one student is randomly selected from the class,…

A: We have given the  that  10 males  30 females  Total = 40

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: Find the probability distribution for the number of dance collections when three collections are…

A: Given that, three collections are selected at random from a dance collection consisting of three Hip…

Q: A survey reports that 53% of college students use Google as their search engine. If 100 students of…

A: Given that n=100 p= 0.53 q= n-p=0.47 μx= n*p= 53 Standard deviation= σ= sqrt(n*p*q)=4.991   Add…

Q: At a local college, 356 of the male students are smokers and 534 are non-smokers. Of the female…

A: Total male student : 356+534                            =890male S moker : 356The probability of a…

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: 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: Andrea did a survey in her statistics class and found that 18 students out of 25 use the library at…

A: Total number of students = 25Number of students uses library atleast twice aweek =18

Q: A class consists of 70 women and 20 men. If a student is randomly selected, what is the probability…

A: Total number of students = 90 Number of women = 70 Number of men = 20

Q: Sixty-five percent of men consider themselves knowledgeable football fans. If 10 men are randomly​…

A:

Q: In a group of 78 people; 24 drink tea and 31 drink coffee. Find the probability that a person picked…

A: 24 - drink tea 31 - drink coffee total 78 people select at random

Q: In a particular community, 70% of the voters are Democrats, and 30% are Republicans. Sixty percent…

A:

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 family with 4 children, excluding multiple births, what is the probability of having exactly 2…

A: Given data, n=4 Let probability of getting a girl=0.5 Let X be event of having a girl P(X=2)=?

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

A:

Q: In a recent survey, 70% of the community favored building a health center in their neighborhood. If…

A: Let "X" be the community favored by building a health center in their neighborhood.

Q: In a large population, 71 % of the people have been vaccinated. If 5 people are randomly selected,…

A:

Q: A batch of parts contains 80 parts from batangas supplier of engine and 120 parts from a supplier of…

A: Given Information: A batch of parts contains 80 parts from batangas supplier of engine and 120 parts…

Q: In a small private​ school, 3 students are randomly selected from 18 available students. What is the…

A: Given information 3 Students are selected from 18 students

Q: If a fiancial services committee had 60 members, of which 10 were women, if 8 members are selected…

A: From the given information,   Total members = 60 Number of women = 10 Number of men = 60 -10 = 50

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.