QI/(a) Of 120 students, 60 are studying French, 50 are studying Spanish, and 20 are studying French and Spanish. If a student is chosen at random, find the probability that the student (i) is studying French or Spanish, (ii) is studying neither French nor Spanish

Q: In a math class there are 8 male students and 7 female students. A student is randomly selected to…

A: As given in class 8 male students and 7 female students. The total number of students in the class…

Q: 1. At UOHB, 5% of all students play football and basketball, 32% of all students play football. What…

A: P(A|B)= P(A∩B)/P(B) Where  P(A|B)=probability of event A occurring given that event B has already…

Q: 11. At Athens country club 73% of the member play bridge and swim, and 82% play bridge. If a membet…

A: Given: Prob. that member play bridge and swim =0.73 Prob. that member play bridge  =0.82

Q: A building contractor buys 70% of his cement from supplier A and 30% from supplier B. A total of 75%…

A:

Q: A survey of 1200 people in a city found that 720 people have invested in stocks, 480 people have…

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

Q: In an experiment, three people toss a fair coin one at a time until one of them tosses a head.…

A:

Q: Eighty-two % of trees planted by a local landscaping company survive. In a random sample of 200…

A: Solution

Q: Twenty-six percent of couples who plan to marry this year are planning destination weddings. In a…

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Q: Suppose a student is selected at random from 100 students where 30 are taking ECE, 20 are taking EE…

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Q: Sixty percent of new drivers have had driver education. During their first year, new drivers without…

A: Define the following events : A : committing an accident. B : driver having proper driver education.…

Q: Among a company's employees, suppose that 65% like the work that they do for the company, 80% like…

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Q: At a college 70% of students are voting for a particular presidential candidate calculate the…

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Q: In an experiment, a ball is drawn from an box containing 7 green balls and 7 orange balls. If the…

A: If two dice are rolled then the total number of outcomes= 62 = 36 The cases for which we get sum of…

Q: In a recent poll of voters, 20% were displeased with both candidates. If 3 people were picked at…

A: Solution.

Q: The probability that a first year student entering a certain private college needs neither a…

A: P(neither a developmental math course nor a developmental English) = 65% = 0.65 P(require a…

Q: A year-long study of heart attacks in a population is to be conducted. Census data shows that 51% of…

A: Let us denote M= Male  F= Female  H= event of having a heart attack  Given,  P(F)=51%= 0.51…

Q: In a class 2% of boys and 3% of girls are having blue eyes. There are 30% girls in the class. If a…

A: Answer: For the given data

Q: The probability that a student chosen at random from a certain college passes Mathematics is 0.8,…

A: Given, Passes Mathematics P(M) = 0.8 Passes English P(E) = 0.6 Passes at least one of them P(M U E)…

Q: 4 out of 100 televisions in stock are defective. If you select one television at random, find the…

A: Here, n=100 and p=0.04.

Q: An experiment consists of randomly selecting colored marbles from a jar. The jar contains 4 red…

A: From the provided information, Red marbles = 4 White marbles = 7 Blue marble = 1 Total marbles in…

Q: In a market study, a researcher found that 70% of customers are repeat customers. If 10 customers…

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Q: Suppose 30% of smoke alarms produced by a company are defective. A family purchases 3 smoke alarms…

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Q: here are 500 seniors at a certain high school, of which 230 are males. It is known that 30% of the…

A: Using Tree diagram I have answered it

Q: A certain group of women had a 0.73% rate of red/green color blindness. If a woman is randomly…

A: It is given that a certain group of women had a 0.73% rate of red/green color blindness.

Q: In the Taiji scene, we learn that dolphins were killed at staggering proportions from 2000-2015. For…

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

Q: An accounting firm has recently recruited six graduates: three men and three women. Three of the…

A:

Q: 27% of all college students major in STEM (Science, Technology, Engineering, and Math). If 49…

A: Solution

Q: A machine that produces stampings for automobile engines is malfunctioning and producing 10 %…

A: Given data: The percentage of the defective item is p=10%=0.1. The total numbers of stamp test are…

Q: A tennis player makes a successful first serve 30% of the time. If she serves 33 times, what is the…

A: Solution: Let X be the number of first serves and n be the number of times she serves. From the…

Q: In a New York Times article a reporter stated that seventy three percent of its readers favored the…

A: Given that, Seventy three percent of its readers favored the cartoon section.  Sample size, n = 14

Q: 2. Wanda receives on average 8 messages from Vision in a 3 hour period. What is the probability that…

A: Given on average 8 messages from vision in a 3 hours periodλ=8 messages from vision in a 3 hours Let…

Q: In a clinical trial, patients are enrolled into the trial one at a time. Suppose the trial consists…

A: If we have n trials each having two outcomes, say Success and Failure, trials being independent and…

Q: In a country, 90% of the graduates are citizens, 70% of the citizens graduates are employed while…

A: in a country, 90% of the graduates are citizens, 70% of the citizens graduates are employed while…

Q: An oil exploration firm is formed with enough capital to finance ten explorations. Assume the…

A: Let p be the probability that a exploration is successful. Given that p = 0.1 Let X donote the…

Q: An animal shelter has a 65% adoption rate for puppies. Of all puppies in the shelter, 75% live to be…

A: Let us denote A= a puppy gets adopted  B= lives 7 years or older given that  P(A)=65%=0.65 P( B | A'…

Q: A Supervisor of a pharmacy found that 30% of the workers receive their spending money from part –…

A: Obtain the probability that at least 3 of them will have part- time jobs. The probability that at…

Q: A college sends a survey to members of the class of 2016.  Of the 1254 people who graduated that…

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Q: A can hit a target 4 times in 5 shots, B three times in 4 shots and C two times in 3 shots. They…

A: Solution is given:

Q: Assuming that boy and girl babies are equally likely, find the probability that a family with three…

A: Conditional rule:The formula for probability of A given B is,

Q: A study was conducted to better understand the television habits of married men and women during…

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Q: n a survey, 8% of the respondents said that their favorite ice cream flavor is cookies and cream,…

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Q: In a recent survey, 73% of the community favored building a police substation in their neighborhood.…

A: Given that, 73% of the community favored building a police substation in their neighborhood. Thus,…

Q: If a person does contract the disease, what is the probability that the person is of genotype AA?

A: Let us define some events A : the person is of genotype AA. B : the person is of genotype Aa. C :…

Q: In a study of 1000 persons there are 450 that males and 550 females. If there are 400 people who…

A: There are 1,000 persons in a study out of which 450 are males and 550 are females. Also there are…

Q: In a production line where shirts are produced, shirts in two colors, blue and red, are produced. It…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: child has a box containing 8 toys cars and 6 toy trucks. They reach in and randomly select 2 toys,…

A:

Q: In a high school graduating class of 100 students, 54 studied mathematics, 69 studied history, and…

A: Define the events as follows: M : The student takes Mathematics H : The student takes History

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.