In an experiment, college students were given either 4 quarters or a one dollar bill and they could either keep some money or spend it on gum. find the probability of randomly selecting a student who spent the money, given that the student was given for quarters. What do the preceding results suggest?

Q: From experience, an airline knows that only 73% of the passengers booked on a flight from New York…

A: There is only two possibilities either ticket booked(success) or not booked ( failure) If r.v is X ,…

Q: a new surgical procedure in preliminary trials has a probability of success of 80%. if 10 patients…

A: Let X denote the patients are scheduled to go through this procedure and it follows binomial…

Q: Catherine Chao, director of marketing research, needs a sample of Kansas city households to…

A:

Q: For the experiment of drawing a single card from a standard 52-card deck, find the probability that…

A: Given: There are 52 cards in a standard deck. There are Diamond, Club, Heart, and Spade each having…

Q: Carson has a 30% chance of beating his brother in a race. If they raise 10 times, what is the…

A: (n C r) prqn-r

Q: The table shows the educational attainment of 532 drivers per vehicle type. What is the probability…

A: There are totally 532 drivers in which 70 are college students, 80 are utility vehicles and 9 are…

Q: If you are interested in the probability of two successes out of five trials, what is the correct…

A: Given  Let p be the probability p=0.30,  n=5. X~Bin(n=5,p=0.30) P(X=2)=?

Q: At a high school with 200 students. 32 play soccer, 18 play basketball, 8 play both sports, find the…

A: The number of students play soccer is 32.

Q: The leading brand of powdered milk in the Philippines has a market share of 45%. A sample of 14…

A: X: the leading brand of powdered milk in the philippinesX~Binomial(n,p)where n=14…

Q: It has been found that 2 out of every 10 people who visit a local store purchase milk. If we…

A:

Q: A basketball player has a 75 percent chance of making a free throw. What is the probability of his…

A: INTRODUCTION :  Binomial distribution: a discrete random variable X is said to follow a binomial…

Q: The Newspaper reports that among individuals in the 40 to 50 age, 45% drink coffee. If 200 people of…

A: Givenp=0.45n=200let "x" be the number of coffee…

Q: In an experiment, positive and negative values are equally likely to occur. The probability of…

A:

Q: A student takes a 20 question, multiple choice exam with five choices for each question and guesses…

A:

Q: In the experiment of rolling a die, what is the probability of obtaining an even number given that…

A:

Q: At Roberta's cafe half of her regular customers order her famous low-fat chicken sandwich. The…

A: Consider the following events A : someone regularly ordered the sandwich. B : someone losing weight.…

Q: On a five-day vacation, the forecast is a 55% chance of rain every day. What’s the probability that…

A: Let p denote the probability of rain every day = 0.55 Let n be days in an vacation = 5 Let the R.V X…

Q: What is the probability of randomly drawing 7 cards at once from a standard deck of cards and…

A: From the provided information, Total cards in standard deck = 52 Sample size (n) = 7

Q: The newspaper reports that among individuals in the 18 to 22 age, 25% drink coffee. If 400 people of…

A: Given,n=400p=0.25q=1-0.25=0.75np=400×0.25=100≥5nq=400×0.75=300≥5we can use normal…

Q: According to a recent survey, 35% of respondents drive Japanese-made cars. From a random sample of…

A: Let X be tbe number of driving a Japanese-made car from Binomial distribution with probability (p)=…

Q: An experiment consists of randomly drawing one marble from a bag containing 7 purple, 4 blue, and 3…

A: Given: The bag contains: 7 purple marbles. 4 blue marbles. 3 green marbles.

Q: According to a study conducted by the Gallup organization, the proportion of Americans who are…

A: It is an importance stance in probability distribution . Binomial distribution is a discrete…

Q: According to a 2009 Reader's Digest article, people throw away about 13% of what they buy at the…

A: We have given that  Sample size n= 153 , p=13%=0.13

Q: Find the probability that a randomly selected student was male given that the student earned a

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Q: The percentage of the damaged production of a lamp factory is 1000. If a sample of 5 lamps is…

A:

Q: According to the Federal Insurance Agency statistics, the proportion of teenage drivers between the…

A: Standard normal score: If random variable X follows normal distribution then the standard normal Z…

Q: what is the probability all three would be smokers?

A: Let , X be the number of smokers Here , X→B(n=3 , p=0.20) The probability mass function of X is ,…

Q: What is the probability of hitting a target if, in the long run, 6 out of every 35 attempts actually…

A: It is given that  Favourable cases = 6 Total outcomes = 35

Q: In the winter, guests who visit Yosemite National Park like to stay at an overnight lodge in the…

A: Given that, Probability = 0.57 Sample size, n = 6

Q: What is the probability that a randomly selected participant tasted peaches given that the…

A: Probability is the chance of occurrence of an event.

Q: The Association reports that among individuals in the 48 to 55 age, 45% drink coffee. If 200 people…

A: let X: number of coffee drinkers…

Q: The proportion of all customers at Pizza Hut who eat on-site is 75 percent. In a sample of 100…

A: Given that  n=100 , p=25%=0.25  , q=1-p=1-0.25=0.75 σp=√(p(1-p)/n)=√((0.25*0.75)/100)…

Q: Find out the probability of getting a total of either 7 or 11 in a single roll of two dice?

A: Ans#- Given, Roll a dice twice then sample space                                           S   =…

Q: In tossing the coin twice, what is the probability of getting one ore two heads?

A: Solution : Sample space for tossing a coin twice is, S = { HH, HT, TH, TT } ∴ n(S) = 4

Q: Migraine medication was administered to patients in that 2% experienced weight gain as a side…

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Q: Which formula would you use to find out the probability of a doctor's patients being female or…

A: Given,Which formula would you use to find out the probability of a doctor's patients being female or…

Q: In the past 20 races, there was two A-class horses to participate in each race. And there was ten…

A: two A class horses participate in each race but only one can win championship. and out of 20 races…

Q: At Frosty Freeze, 5 of the last 20 sundaes sold had nuts. What is the experimental probability that…

A: 5 have nuts 15 have not nuts 20 total sundaes P(next sold have nuts) = ?

Q: In a probability experiment, 42 out of 70 trials were unsuccessful. a) What is the experimental…

A:

Q: Consider the tossing of a pair of dice. Find the probability that the sum of the two die is 6.…

A: The possible outcome for a pair of dice is 36. which is as follows: (1,1), (1,2), (1,3), (1,4),…

Q: In the winter, guests who visit Yosemite National Park like to stay at an overnight lodge in the…

A: From the provided information, Guests who visit Yosemite National Park like to stay at an overnight…

Q: For the experiment of rolling an ordinary pair of​ dice, find the probability that the sum will be…

A: If a pair of die are rolled  than the possible outcomes are 36the possible outcomes that the sum…

Q: In a review class of 80 students, 70 passed the board exam. If a student is selected at random, what…

A:

Q: When taking two cards from the playing cards, what is the probability of getting the number 9 in…

A: Given :  Taking two cards from the playing cards, what is the probability of getting the number 9 in…

Q: A convenience store estimated that 22% of its customers come in to buy milk. What is the probability…

A:

Q: On a True/False quiz, what is the probability of guessing 5 out of 10 questions correctly?

A: It is given that n = 10.

Q: The US population is 13% African American.  If you were to take a SRS of 500 Americans, what is the…

A: It is given that the sample size n is 500 and p hat = 0.13.

Q: A coin is tossed six times. What is the probability of obtaining four or more heads ?

A:

Q: What is the probability of it raining, P(B), if it has started snowing? Report P(B), given that it…

A: From the given information, There is a 60% chance of snow. That is, P(A)=0.60 There is a chance of…