Suppose you go to bed at 10 PM and wake up at 6 AM and check your email the first thing after waking up. On an average, your inbox receives 140 emails during that period. What is the probability that you will have in between 131 and 143 emails (both inclusive) to read?

Q: A baseball player has a batting average of 0.22. What is the probability that he has exactly 6 hits…

A: Answer: Given that: p= 0.22 , n= 7 now will use Binomial probability P(X=x)=nx*px*(1–p)n–x,where…

Q: Makayla is flying from Memphis to Oklahoma City with a connection in Denver. The probability her…

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Q: Twenty-one percent of people say they've seen a ghost or felt its presence. If 13 people are asked,…

A: Answer:- Given, Twenty-one percent of people say they've seen a ghost or felt its presence. That is,…

Q: In a fundraising event, 100 raffle tickets are sold, with 10 of them being winning tickets. If you…

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Q: At a certain University, the chance of a student receiving financial aid is 73%. 15 students are…

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Q: A junk drawer at home contains eighteight pens, fourfour of which workwork. What is the probability…

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Q: What is the probability that she has her first successful ticket on the 4th try

A: Let p be the probability of winning. Given that p = 0.07 Let X denote the try number on which she…

Q: In a large population, 59% of the people have been vaccinated. If 5 people are randomly selected,…

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Q: The probability that an individual is left-handed is 0.190. In a class of 17 students, what is the…

A: It is given that,  The probability that an individual is left-handed is 0.190  i.e. p=0.190 We have…

Q: Clara is a medical assistant who gives 14 people a flu shot in one day. The probability of…

A: Givenn=14p=0.14x~Binomial(n=14,p=0.14)P(X=x)=(nx)×px×(1-p)n-x    ;  x=0,1,...,n

Q: A student takes a ten question true false quiz but did not study and randomly guesses each answer.…

A: Given: Number of questions = 10Probability of getting correct =1/2 =  0.5 (because it is a true -…

Q: You select a card from the standard deck of cards.  What is the probability that you will select a…

A: In a deck of cards Face cards = Jack, queen and king Total face cards = 3 x 4 = 12 Number of 8 cards…

Q: A baseball player has a batting average of 0.265. What is the probability that he has exactly 2 hits…

A: Given data, p(hit) =p=0.265 sample size (n)=7 x = no. of hits in 7 bats P(x=2) =?

Q: In a large population, 57% of the people have been vaccinated. If 3 people are randomly selected,…

A: Obtain the probability that that at least one of them has been vaccinated. The probability that that…

Q: Alex makes 20% of his hockey goals that he attempts.  For a practice, he likes to shoot goals at the…

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Q: Terry purchases 25 scratch off lottery tickets. Each ticket has a 10% chance of winning. What is the…

A: Given: Sample size (n)=25. The probability of winning is p=10%=0.10.

Q: A baseball player has a batting average of 0.155. What is the probability that he has exactly 1 hits…

A: Let, X be the random variable representing the number of hits at bat.p = 0.155n = 7Here We will use…

Q: Terry purchases 30 scratch off lottery tickets. Each ticket has a 10% chance of winning. What is the…

A: Given: The sample size is n= 30. The probability of winning is p=10%=0.10.

Q: Fifty-three percent of all U.S. citizens have some college education. Choose 10 people at random,…

A: Answer: Given that                    p= 0.53      ,   n=10                      now will use…

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

A: n=3,p=59%=0.59X~Binomial(n=3,p=0.59)Let X be the number of person have been vaccinated.p be the…

Q: A carnival game consists of choosing a rubber duck from a kiddie pool. If the duck has a red dot on…

A: There are 10 ducks in the pool, and 2 of them have red dots.

Q: A student takes a true-false test but did not study and randomly guesses each answer. There are 20…

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Q: A group of people were asked if they had run a red light in the last year. The number of people that…

A: The sample proportion of the sample of size n can be defined as: p^=xn Here, x = Total number of…

Q: A high school baseball player has a 0.273 batting average. In one game, he gets 9 at bats. What is…

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Q: We have a 150-seat airplane. Historically 93% of ticket holders show up for the flight. If I sell…

A: From the provided information, Sample size (n) = 159 Probability of success (p) = 0.93 The process…

Q: During a single day at radio station WMZH, the probability that a particular song is played is 22%.…

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Q: A blood test for diabetes gives a positive result with a proportion of 0.48 when an individual has…

A: The events are denoted as follows:: Event that an individual has diabetes.: Event that an…

Q: A quick quiz consists of a true/false question followed by a multiple-choice question with 6…

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Q: 65% of the people in Missouri pass the driver's test on the first attempt. A group of 7 people took…

A: Introduction:If X ~ Bin (n, p), then the probability mass function of X is:p (x) = (nCx) px (1 – p)n…

Q: Find the probability of that he or she owns a credit card given that the student is a freshman.…

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Q: If the probability that your DVD player breaks down before the extended warranty expires is 0.021,…

A: P(DVD player break down before extended warranty expires) = p = 0.021 P(DVD player will not break…

Q: A baseball player has a batting average of 0.355. What is the probability that he has exactly 4 hits…

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Q: 9. In Virginia 22.3% of released prisoners return to prison within 3 years of their release. Suppose…

A: Given, In Virginia, 22.3% of released prisoners return to prison within 3 years of their release.…

Q: Terry purchases 29 scratch off lottery tickets. Each ticket has a 8% chance of winning. What is the…

A: If the occurrence/non-occurrence of an event does not affect the occurrence/non-occurrence of other…

Q: John runs a computer software store. Yesterday he counted 132 people who walked by the store, 69 of…

A: GivenNo.of people who walked by the store=132No.of people came into the store=69No.of people bought…