Section 2.2 5.A certain test consists of 10 multiple-choice questions, Each question has four choices. What is the probability of getting at most 9 questions correct?

Q: You take a 20-question multiple-choice exam. Each question has 4 possible answers (only one of which…

A: A binomial random variable is the number of successful trials out of total n trials. A random…

Q: On a 9 question multiple-choice test, where each question has 4 answers, what would be the…

A: Binomial probability refers to the probability of exactly x successes on n repeated trials in an…

Q: There are 5000 people in a village. 2000 were diagnosed sick. I am wrong 20% of the time. If you are…

A:

Q: If the probability of winning is 37/100 what are the odds in favor and odds against winning

A: P(W)=37/100

Q: A bag of gumballs contains 10 green gumballs, 8 orange gumballs, 12 pink gumballs and 15 red…

A: Here the bag contains 10 green, 8 orange, 12 pink, and 15 red gumballs. So, the total of the…

Q: thirty four percent of us adults have very little confidence in newspapers. You randomly select 8 US…

A: Binomial distribution:The binomial distribution gives the probability of number of successes out of…

Q: A multiple -choice test consists of 6 questions . Each question has answers choices of a,b,c,d, and…

A: From the provided information, Number of questions (n) = 6 Each question has answers choices of…

Q: B- A magazine reported that 20% of American drivers read the newspaper while they driving. If 15…

A: Given data Probability of reading newspaper while driving p = 0.2 No of drivers selected n = 15 Let…

Q: A students takes a 5 – question, multiple-choice exam with four choices for each question and…

A: It is given that a students takes a 5 multiple choice question with each four choices.

Q: According to a survey of American households, the probability that the residents own 2 cars if…

A: According to the provided data,

Q: What is the probability of getting a straight or one pair?

A: In a game of poker, For getting a straight it is needed to get five cards of the same suit in the…

Q: You roll a single dice two times. What is the probability of rolling zero even numbers?

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Q: A student randomly guesses at four multiple choice questions. Each question has three possible…

A: Let the random variable X denotes the number of correct answers and it follows binomial distribution…

Q: A student has a 30% chance of getting a particular professor for a class. What are the odds of…

A: From the provided information, There is 30% chance a student getting a particular professor for a…

Q: Q4/B/ Three machines A, B and C produce respectively 19%, 2% and 3% of the total number of items of…

A: Consider the following events, A=selected item is produced by machine AB=selected item is produced…

Q: Studies show that seven percent of adults live to age of 110. You randomly select five adults. Find…

A: Obtain the probability that at least two of them will live until age of 110. The probability that at…

Q: threw a cut three times, so what's the probability of getting the picture twice?

A:

Q: You roll a 6 sided dice. The dice is not fair, because the probability of rolling a one is 0.249. If…

A: Given that  You roll a 6 sided dice  Rolling die for 6 times (n) = 6 Probability of rolling a one…

Q: A bag contains 9 blue marbles, 10 red marbles, 4 white marbles. If one marble is drawn from the bag…

A: Given Information: A bag contains 9 blue marbles, 10 red marbles, 4 white marbles. Total number of…

Q: Please answer question in decimal form. A student is taking an exam and doesn't know the answers…

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Q: Studies show that seven percent of adults live to age of 110. You randomly select five adults. Find…

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Q: What is the probability of having 3 boys given the oldest is a boy?

A: The theory of probability has its origin in the seventeenth century. The king of France who…

Q: You have a homework assignment that contains 12 questions. Your instructor will grade a set of 5…

A: Given: Total number of questions, n = 12            5 questions would be graded Part 1: The total…

Q: On a 9 question multiple-choice test, where each questions has 5 answers, what would be the…

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Q: A game is played by rolling the two dice, three times (toss the two dice three times). What is the…

A: It is given that there are two dice that are thrown three times. Consider that D1 and D2 are defined…

Q: a test consists of 10 true/false questions. To pass this test a student must answer at least 7…

A: In this context, X has a Binomial distribution with parameters n = 10 and p = 0.5. Since X is a…

Q: You wish to play a three-number lottery with your favorite data 8, 2 and 5.  After a number is…

A: Given dataThere are 3 numbersRepetition is allowedWe are drawing a single number with replacement,…

Q: If you toss 6 coins, what is the probability of all 6 coins matching?

A:

Q: If you roll two dice what’s the probability of rolling a seven the numbers on the dice add up to…

A: we roll two dice total possibilities = 62=36all outcomes are equally likely

Q: A multiple- choice test consist of 10 question . Each question has answers choices of a, b, c, d and…

A:

Q: 5-question test consisting of multiple choice questions. For each question, 5 options (possible…

A: The probability could be defined as a number that always fall between 0 and 1 where 0 implies the…

Q: ultiple choice test consists of 60 questions. Each question has 4 possible answers of which one is…

A: Given: n = 60 The probability of correct answer is, p=xn=14=0.25 The mean can be calculated as: μ =…

Q: Suppose 20% of business majors major in finance. You take a random sample of 3 business majors. What…

A: We have given that Probability (p) = 20% = 0.20 Number of trials (n) = 3 Let x = number of success…

Q: If 4% of the passengers traveling to San Francisco have their luggage lost, what is the probability…

A: given data  P(luggage lost) = p = 0.04 n = 150 peoples x = no. of people lost their luggage  P(x≥5)…

Q: If you make random guesses for four multiple choice test questions (each with 4 possible answer),…

A: Let X be the random variable that a number of answers correct. Here X ~ bin n=4, p = 14The pmf of…