Suppose that the likelihood that someone who logs onto a particular site in a “shopping mall” on the World Wide Web will purchase an item is 0.20. If the site has 12 people accessing it in the next minute, what is the probability that none of the individuals will purchase an item?

Q: Suppose that the probability of parents having a child with blond hair is 1/4. If there are 6…

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Q: The probability that a patient recovers from a rare blood disease is 0.4. If 15 people are known to…

A: Given,n=15p=0.4Let X=no.of patients survives from the blood diseaseX~Binomial (n=15 ,…

Q: Suppose there is a 40% chance that a risky stock investment will end up in a total loss of your…

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Q: at the bank of california, past data show that 8% of all credit card holders default at some time in…

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Q: According to some estimates, approximately 34.3% of the American population has A+ blood.  Suppose…

A: From the provided information, 34.3% of the American population has A+ blood that is p = 0.343…

Q: It is known that Michael Jordan made 83.5% of his free throws during his career. If in a regular…

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Q: that Serena Williams’ probability of winning a final is her lifetime singles final winning…

A: Consider a random variable X which represent the number of failures before 2 success . X can be…

Q: The probability that a boy will get a scholarship is 0.9 and that a girl will get is 0.8. What is…

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Q: A particular gadget contains 50 integrated circuits (ICs). The probability that any one of these ICs…

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Q: Suppose the influenza vaccine this year is 88% effective to prevent the flu among high-risk…

A: Probability, p = 88% = 0.88Sample size = 25

Q: If math. Professor receives on average of 5 e-mail messages per day from Students, then the…

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Q: hat is the critical value of a two tailed t-test with a degrees of freedom of df=15 and using an…

A: Given data, df=15 Alpha level=0.01 What is the critical value of a two tailed t-test?

Q: The testing division of a chip manufacturing company tests all manufactured chips individually, one…

A: Introduction to Geometric distribution: Suppose there are independent trials and the probability of…

Q: According to the british Ministry of Health, the probability of a woman developing breast cancer…

A: Given: Number of women (trials) = 10 Probability of breast cancer (p) = 310= 0.3 X be the binomial…

Q: An assembly line has two inspectors. The probability that the first inspector will miss a defective…

A: If the defective item passes both inspectors then that means that it was missed by the first…

Q: The probability that a newly matriculated student will not get to the second year of their studies…

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Q: An average student is known to have a chance of 50% in answering a TRUE or FALSE question correctly.…

A: Obtain the probability that an average student will have at least 1 correct answer.   The…

Q: According to the spanish Ministry of Health, the probability of a woman developing cancer over a…

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Q: Suppose that an incubator contains 200 eggs. The probability that a hatching egg will contain a…

A: Given : X = Number of female chick hatch. n = 200 p = 0.5 q=1-p=0.5 X~Binomial(n=200,p=0.5) Here,…

Q: An assembly line produces USB keys. The probability that each of the keys produced has some type of…

A: Given that  X~negative binomial (r) r=97 P=1- 0.036 =0.964

Q: In a particular care facility, 8% of adults over 65 have Alzheimer’s. If a physician at this care…

A: Let us denote A= the event that a patient has Alzheimer’s  C= diagnosed positive Given that…

Q: A traffic control engineer reports that. 75% of the vehicles passing through a checkpoint are from…

A: Given that  75% of the vehicles passing through a check point are from within the state. So the…

Q: Suppose 10% of the people who are given a certain drug experience dizziness as a side effect.  If 15…

A: Solution: Let X be the number of people will become dizzy and n be the sample number of people. From…

Q: In a certain region of the country it is known from past experience that the probability of…

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Q: e average incidence is 2 per million people. What is the probability that a city of 1 million people…

A: By using Poisson distribution:

Q: On average, 8.6 rooms stay vacant per day at a large hospital, Find the probability that on a given…

A: Given: Average number of rooms vacant per day λ=8.6. Let X be the Poisson random variable…

Q: Alicia believes that the probability for the stock market to go down is 0.7 given that the economy…

A: Define the events, A : Economy deteriorates during Pandemic covid-19 B : Stock market go down Given…

Q: According to the Turkish Ministry of Health, the probability of a woman developing breast cancer…

A: Given: p=probability of developing cancer=1/5P(3 women out of 15 will develop breast cancer)=?

Q: Suppose Eman has an 85% chance of passing each time he takes a quiz. What is the probability that he…

A: The probability of passing the quiz is 85% or 0.85 Therefore the probability of failing the quiz is…

Q: If two people are chosen with replacement from the data, what is the probability that both are…

A: Given contingency table is :   Athletic Shoes Sandals Dress Shoes Other Total Men…

Q: A software engineer receives a notification anytime a customer sends a crash report. Suppose the…

A: Given information: Number of customers randomly selected using the software, n = 80 The software…

Q: It is known that 70% of Canadian adults have a passport. What is the probability that you have to…

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Q: Suppose that on five consecutive days an "instant winner" lottery ticket is purchased and the…

A: Define the Random Variable, X : Number of days purchased a winning ticket in 5 days X ~…

Q: The probability that a statistics graduate from a Canadian university gets a data science job is…

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Q: Find the probability that a driver with at least one collision in the past year is a middle aged…

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Q: It is known that 5% of the books bound at a certain bindery have defective bindings. Find the…

A: It is given that  P( defective binding ), p = 5% = 0.05 Sample size, n = 100