Suppose that 45% of the people entering a store make a purchase. If a random sample of 80 shoppers is selected,then the probability that at least 40% of them will make a purchase is O a. 0.809 Ob. 0.896 Oc. 0.816 O d. 0.184 e. 0.886

Q: What is the probability that a randomly selected adult has a "normal" resting body temperature that…

A: Given :  Empirical evidence shows that the "normal" resting adult body temperature is normally…

Q: A group of forty people at a health club were classified according to their gender and smoking…

A:

Q: The table below shows the distribution of a group of 40 college students by gender and class.…

A: Solution: From the given information, the distribution of a group of 40 college students by gender…

Q: An alrline knows from experience that the distribution of the number of suitcases that get lost each…

A: The mean is 17.4 and the standard deviation is 3.4.

Q: A student is selected at random from a group of 400.   The results are summarized in the two-way…

A: Classical Definition of Probability: If there are n mutually exclusive, exhaustive, and equally…

Q: Find the probability that a student picked at random will be female and right- handed? A random…

A:

Q: A recent survey found that 70% of all adults over 50 wear sunglasses for driving. In a random sample…

A: Given that, 70% of all adults over 50 wear sunglasses for driving. Sample size = 10

Q: A political scientist is analyzing the possible voting outcomes of a proposal. According to polls,…

A: According to the given information, we have The probability that a voter will vote yes is 50% Sample…

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A:

Q: A recent survey found that 70% of all adults over 50 wear glasses for driving. In a random sample of…

A: A random variable x is following the binomial distribution with the following probability mass…

Q: The two-way table summarizes data on whether students at a certain high school eat regularly in the…

A: The following table summarizes the data on whether students at a certain high school eat regularly…

Q: The following table lists the probability distribution of the number of refrigerators owned by all…

A: Solution: Given: x P(x) 0 0.01 1 0.69 2 0.22 3 0.08 P( a family owns at exactly two…

Q: Here is the probability model for the blood type of a randomly chosen person in the United States.…

A: Given that the probability of type O blood is = 0.53 So the probability of not having type O blood…

Q: A recent poll of residents in a certain community revealed the following information about voting…

A:

Q: Suppose that the proportions of blood phenotypes in a particular population are as follows: A B АВ…

A: Hi there! Thanks for the questions. Since, there are two different questions, we have solved one…

Q: Suppose that five hundred residents were randomly selected and asked whether they have covid vaccine…

A: There are two categorical variables which are gender and Covid Vaccine booster shot. We have to find…

Q: If a person is selected at random from those surveyed, find the probability of each of the following…

A: 1. The probability that the person is female or has a college degree is, PFemale or…

Q: The table gives the results of a survey of 1000 people about reducing industries' carbon emissions.…

A: Given, Favorable Outcomes (Democrat) = 310 Total No Of People in Group = 1000

Q: A group of forty people at a health club were classified according to their gender and smoking…

A: Gender Smoker (S) Nonsmoker (N) Total Male (M) 2 24 26 Female (F) 6 8 14 Total 8 32 40

Q: Suppose that the proportions of blood phenotypes in a particular population are as follows: A= 0.45…

A:

Q: A random sample of 200 adults are classified below according to sex and the level of education…

A: Given that  Education  male Female  total Elementary  38 45 83 Secondary  28 50 78 College…

Q: A recent poll of residents in a certain community revealed the following information about voting…

A: total resident (N)=235 P(I)= 55/235..(printing mistake in example) P(F)= 115/235 P(I U F)=…

Q: The following table summarizes the number of students at Kiddies Headstart Preschool, categorized by…

A: Note- As per our policy we can answer only the first 3 sub-parts of a question. If you want…

Q: The following table lists the probability distribution of the number of refrigerators owned by all…

A: According to the given information, we have The probability distribution table is, x 0 1 2 3…

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A:

Q: In a certain country, 47 percent of the population are on a strict diet. In a sample of 20…

A:

Q: The table below describes the smoking habits of a group of asthma sufferers. Occasional Regular…

A: We have to find given probability.

Q: According to a 2017 Wired magazine artide, 41% of emails that are received are tracked using…

A: The probability density for binomial distribution is: PX=x=Cxnpx1-pn-xwhere,n=total number of…

Q: The table below describes the smoking habits of a group of asthma sufferers. Occasional Smoker…

A:

Q: (a) The probability that at least half of the 100 workers from Industry A earn less than $20,000.…

A:

Q: A study of consumer smoking habits includes 200 people in the 18-22 age bracket (40 of whom smoke),…

A: Given:   Smoke Not smoke Total 18 - 22 40 160 200 23-30 31 99 130 31-40 30 70 100 Total…

Q: The two-way table summarizes data on whether students at a certain high school eat regularly in the…

A: Given, The two way table includes whether students eats cafeteria or not by their grade level.

Q: An airline knows from experience that the distribution of the number of suitcases that get lost each…

A:

Q: In a certain country, 47 percent of the population are on a strict diet. In a sample of 20…

A:

Q: • A random sample of 200 adults are classified be- low by sex and their level of education attained.…

A: Solution: The given table of data is

Q: 21) The table below describes the smoking habits of a group of asthma sufferers. Occasional Regular…

A: H = Heavy smoker M = Men T = Grand Total

Q: In a certain Country, 47 percent of the population are on a strict diet. In a sample of 20…

A: It's binomial probability distribution

Q: According to a journal article on ancient Japanese history, 1 in every 5 samurai became masterless…

A: Given that 1 in every 5 became masterless during feudal age of japan. p=15p=0.20 n=15P(Atleast…

Q: The following table describes the smoking habits of a group of asthma sufferers ​ Nonsmoker (NS)…

A: Given   See the table

Q: A study of the incoming freshman class at a university found that 60% of the students had taken AP…

A: Here, we are given that: P(C) = 0.6, P(E) = 0.55 and P(C and E) = 0.2

Q: The table below describes the smoking habits of a group of asthma sufferers. Light Heavy Nonsmoker…

A: Part a: The probability that the person chosen is heavy smoker given that the person is a man is…

Q: R. H. Bruskin Associates Market Research found that 40% of Americans do not think that having a co…

A: Given data, p=40%=0.40 n=5 P(X<=3)=?

Q: A recent poll of residents in a certain community revealed the following information about voting…

A: From the table we see that: n(D)=n(Democrats)=110 n(M)=n(Male)=120 n(M and D)=50 So, n(M or…

Q: Find the probability that a student picked at random will be female or Right- handed? C A random…

A: Probability  A probability tells the chances of an event whose occurrence is uncertain. For example,…

Q: Suppose that the odds in favor of an event E are 15 to 13. Then find the probability of E OA 13 / 28…

A: odds in favor of an event is described as probability of event1-probability of event

Q: Suppose that the proportion of all dialysis patients who will survivie for at least 6 years. is 0.81…

A: Solution: Given information: n= 45 Sample size  p= 0.81 Population proportion

Q: Prior to airport construction, a survey was conducted if the residents in a certain barangay are in…

A: Given that  p=35%=0.35 , q=1-p=1-0.35=0.65 n=350 Note: According to bartleby experts question…

Q: Suppose that the odds in favor of an event E are 13 to 15. Then find the probability of E OA 13 / 15…

A: For the given event E, P(E) is the probability of the event Then the formula for the odds in favor…

Q: A sample of 200 people are classified as below. If a person is picked at random from this Stoup,…

A: If the probability of getting selected for each outcome is equal then such outcomes can be termed as…