recent lottery collected $66 227 391 selling tickets at $1.50 each. The prizes were as follows: a. What is the probability of winning a prize in this lottery? b. What is the expected profit per ticket?

Q: In a standard deck of cards, what is the probability that a person selects first a face card and…

A: given data  standard deck of 52 cards  select cards without replacement P(first face card and then…

Q: Determine the probability that in a sample of 100 the sample proportion is less than .75 if p = 0.80

A: Given, Sample size, n = 100 Population proportion, p =0.8 Z = p^-pp1-pn

Q: a) what is the probability that you will win  b) what are your expected earnings  c) what have you…

A: HERE GIVEN, You purchased a single ticket for $5 and there were  total 700 tickets sold. The top…

Q: According to a 2009 Reader's Digest article, people throw away approximately 20% of what they buy at…

A: Given data Probability of throwing away (p) = 0.2 No of grocery shoppers(n) = 100 Probability that…

Q: So what is the percentage? The answer above is probability correct? The original question had…

A: From the obtained results, the probability of customers are between 14.7 and 52.7 years of age is…

Q: Suppose the probability of an IRS audit is 2.0 percent for u.s taxpayers who file form 1040and who…

A: Given information- The probability of an IRS audit is 2.0 percent for U.S taxpayers. So, Number of…

Q: In a large population, 61% of the people have been vaccinated. Give your answer as a value between 0…

A: From the provided information,p = 0.61n = 5

Q: The Badger Insider is a magazine that is sold throughout Madison on daily basis. There are on…

A: Mean = 2100 n = 60 Standard Deviation = 500

Q: Suppose the probability of an IRS audit is 5.3 percent for U.S. taxpayers who file form 1040 and who…

A: From the provided information, The probability of an IRS audit is 5.3 percent for U.S. taxpayers who…

Q: A California water company has determined that the average customer billing is $1,225 per year and…

A: Mean =  µ = $1225  And distribution is exponential

Q: A recent survey of 980 American adults (18 year olds and over) were asked what their favorite season…

A: The probability that a randomly selected American adult picks Fall as their favorite season is…

Q: what is the probability that one randomly selected person will have average income between $72000…

A: From the above calculation we have  Mean= µx̅ = µ = 75847Standard deviations (σx̅ ) =3200

Q: An auto insurance company determines the probability of a car accident is about 2% and that, if an…

A: Given information- We have given that the probability of a car accident = 2% = 0.02 If an accident…

Q: If the odds of winning on a scratch-off lottery ticket are 17:2,834, what is the probability of…

A: From the provided information, The odds of winning on a scratch-off lottery ticket are 17:2834

Q: According to a 2009 Reader's Digest article, people throw away about 14% of what they buy at the…

A: Population proportion : p = 0.14Sample size : n = 123

Q: 50 raffle tickets were sold for $5 apiece, with a chance to win a flat screen TV values at $700.…

A: The price can be won only one of the ticket out of 250 raffle tickets  So,  P(win) =1250P(Loss) =…

Q: A three-bulbed flask contains five particles. What is the probability, to three significant figures,…

A: Let us assume X be the random variable representing the number of particles, out of total 5, in the…

Q: undredths place. upcakes are being randomly passed out to very student in the class. The assortment…

A: We have given that,  Carrot cake = 6 Chocolate cake = 5 Lemon = 3 Mint chocolate = 2 Birthday cake =…

Q: A recent study of cardiovascular risk factors reported that 30% of adults met criteria for…

A: Let X be the number of adults that meet the criteria for hypertension. Therefore, The probability…

Q: Suppose the probability of an IRS audit is 2.9 percent for U.S. taxpayers who file form 1040 and who…

A: Given that in the question  Probability of an IRS audit is 2.9 percent for U.S. taxpayers who file…

Q: Marijuana Use in the Last 30 Days Never used, 49.1% Used, but not in the last 30 days, 28.0% Used…

A: From the pie chart,   Percentage Probability Never used 49.10% 0.491 Used, but not in the…

Q: Use the given odds to determine the probability of the underlined event.   odds against exposure to…

A: Given, The odds against exposure to excessive natural cold​: odds against exposure 6,045 to 1…

Q: The probability that an individual is left-handed is 0.140. In a class of 20 students, what is the…

A: Let X: number of left handersX has binomial distribution.X~binomial(n,p)where number of trials(n)=…

Q: An STD clinic sees 10 people an hour. The actual probability of someone having an STD is 30%. You…

A: The number of people seen in STD clinic in one hour is 10The actual probability having STD is 30%.

Q: Suppose the probability of an IRs audit is 4.2 percent for U.S taxpayers who file form 1040 and who…

A:

Q: Suppose the probability of an IRS audit is 1.4 percent for U.S. taxpayers who file form 1040 and who…

A: Given : Suppose the probability of an IRS audit is 1.4 percent for U.S. taxpayers who file form 1040…

Q: As a promotional offer, a newly opened movie theatre is awarding 25% of their new patrons with a…

A: It is an important part of statistics. It is widely used.  Since the question has multiple sub parts…

Q: An examination has  historical record of a 25% rate of failure.For a group of 15 students sitting…

A: The scenario above would satisfy all conditions of binomial distributions:• Fixed number of trials…

Q: spital lottery, 2.4 million tickets are sold; there are 16 grand prizes of new homes worth…

A: Total number of tickets sold = 2.4 million = 2,400,000   Number of tickets having second prize = 70.…

Q: Use the standard normal probability chart, included in this exam, to look up the following numbers…

A: (a) Using the standard normal probability chart, the probability corresponding z = -0.0492 is, From…

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.