John runs a computer software store. Yesterday he counted 131 people who walked by the store, 66 of whom came into the store. Of the 66, only 29 bought something in the store. (Round your answers to two decimal places.) Estimate the probability that a person who walks by the store will enter the store. Estimate the probability that a person who walks into the store will buy something. Estimate the probability that a person who walks by the store will come in and buy something.

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: According to www.meretrix.com, traffic fatalities occur at the rate 3.49 fatal accidents per 100…

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Q: Florence runs a day care centre. Of the last 15 children to enrol at the day care centre, 3 of them…

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Q: A high school baseball player has a 0.217 batting average. In one game, he gets 7 at bats. What is…

A: P(hit) = p = 0.217 no. of trials (n) = 7 x = no. of hits P(x≥2) = ?

Q: Find the probability of drawing in order, the two through the queen of spades from an ordinary deck…

A:

Q: A high school baseball player has a 0.266 batting average. In one game, he gets 6 at bats. What is…

A: The batting average is given as, .The no. of bats, .In this case, each batting has only options of…

Q: In the past, it had a probability of 0.68 success in any attempt to make a call on the telephone.…

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Q: d marbles and 18 blue marbles.  You reach in and pick 4 marbles at random (without replacement).…

A: Given information: 15-red marbles18-blue marbles33-Total marbles 4 marbles are picked at random…

Q: A history class is comprised of 8 female and 7 male students. If the instructor of the class…

A: Given that Female students =8 Male students=7 Randomly selected students= 8

Q: A poll showed that 50.9% of Americans say they believe that life exists elsewhere in the galaxy.…

A: The given percentage of Americans who are said to believe that life exists elsewhere in the galaxy…

Q: At a large university, the probability that a student takes calculus and is on the dean's list is…

A: Given that  The probability that a student takes calculus and is on the dean's list is 0.035.…

Q: The probability that a student is awarded a pass in Engineering statistics is 0.75. Find the…

A: Solution: Let X be the number of students pass the statistics examination and n be the sample number…

Q: exactly twice to pass the course

A:

Q: find the probability of left of z = 2.3456

A: z-score: The area under the Normal distribution curve represents the probability and the total area…

Q: Find the probability of selecting a red card or a 3 from a deck of 52 cards.

A:

Q: The average price for an acre of land in Texas is  N(2700, 7802)  in dollars. Jaime will survey 121…

A: Given Let the price of the plot be X X~N2700,7802Sample size, n=121

Q: During Game 6 of the finals of the NBA championship, Steph Curry got fouled and was awarded 2 free…

A: Given,The probability of making a shot in the free throwlines is 0.88 .

Q: The probability that a randomly selected commuter listens to audiobooks during their commute is…

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Q: In a recent survey, 303 out of 350 residents of Salem, MA said they are planning on passing candy…

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Q: The lacrosse team has a 55% chance of winning its upcoming games. Find the probability of them…

A:

Q: 8% of Dr. Williams patients end up with 20-30% vision or better. Find the probability that exactly 4…

A: Let the give data be probability of patients getting well = 0.98 The number of patients. n = 4

Q: If the probability that the Yankees will win a baseball game is 60%, find the probability that the…

A: The probability that Yankees will win a baseball game is 60%, that is PWinning=0.60.

Q: In a very delicate operation, the only chance of survival is 80 percent. Find the probability that…

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Q: In a recent semester at a local university, 600 students enrolled in both statistics I and…

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

A:

Q: A poll showed that 46.1% of Americans say they believe that statistics teachers know the true…

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Q: The supplier sent a batch of 10000 parts to the customer. The probability of damage to one part…

A: In question, Given that The supplier sent a batch of 10000 parts to the customer. The probability of…

Q: A poll showed that 50.9% of Americans say they believe that some psychics can help solve murder…

A:

Q: The probability that an automobile needs an oil change is 43.77% and the probability that it needs a…

A: GivenP(automobile needs an oil change)=0.4377P(automobile needs a new oil filter)=0.4329

Q: ass, 75% of students are taking an English class, and 57% of students are taking both. Find the…

A:

Q: A poll showed that 50% of Americans say they believe that life exists elsewhere in the galaxy. What…

A: here given , A poll showed that 50% of Americans say they believe that life exists elsewhere in the…

Q: For numbers 23-25, refer to the problem. There are one thousand tickets that are sold for P50.00…

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Q: find the probability that the educator is a female or an associate professor

A: We have given that an educators at a college were classified according to gender and academic rank.

Q: A box at a miniature golf course contains 77 red golf balls, 88 green golf balls, and 33 yellow golf…

A: Case (i): It is given that there are 77 red balls, 88 green balls, and 33 yellow balls. The total…

Q: A mail order company has a 7% success rate. If it mails advertisements to 636 people, find the…

A: Givenp=0.07n=636let "x" be no. of getting salesx~Binomial(n=636,p=0.07)P(X=x)=(nx)px(1-p)n-x  ;…

Q: t a large university, the probability that a student takes calculus and is on the dean's list is…

A: Probability of student takes calculus and on the dean's list is 0.026 Probability of student on the…

Q: On average, you receive four pieces of junk mail a day. Find the probability that you receive next…

A: Given that On average, we receive four pieces of junk mail a day. Than we have to find the…

Q: High school seniors who are accepted to TCNJ have a 60% yield rate, meaning that 60% of accepted…

A: Given information, the percentage of accepted students decide to attend TCNJ is 60% and there are 3…

Q: Find the probability of dealing two red cards from a standard deck of cards.

A: In a standard deck of cards, there are 52 cards in total out of which there are 26 red cards and 26…

Q: An airplane has 2 engines and the engines function independently. The probability that the first…

A: Sol:- Since the engines function independently, we can use the multiplication rule of probability to…

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

A: