Q.3 (i) You are taking a 50 question multiple choice test. Each question has 4 choices. Clueless on 1 question, you decide to guess. What is the probability that you will get it correct? (ii) If a passing grade is 30 correct answers, what is the probability that you will pass if you guess on all 50 questions.

Q: During the grand opening of an electronics store, any customer has a 9% chance of winning a free…

A: From the information, any customer has a 9% chance of winning a free laptop .

Q: Sixty percent of consumers prefer to purchase electronics online. You randomly select 8 consumers.…

A: Let the R.V X denotes the number of consumers prefer to purchase electronics online  and it follows…

Q: Anna is baking muffins. She has chocolate chips, nuts, raisins and blueberries. She has decided to…

A:

Q: Use the spinner to find the probability of each outcome. P(red) = P(not blue) =

A: Solution ) Number of possible outcome  = red , green , yellow , purple , blue  Hence n(s) = 5 And n…

Q: Kevin is at a charity fundraiser and has a chance of receiving a gift. The odds in favor of…

A: Hello! As you have posted 2 different questions, we are answering the first question. In case you…

Q: Please solve this: You are to play a game of chess against a random opponent on the web. You say to…

A: The Probability of winning the game is equal to 75%

Q: You are ordering a hamburger and can get up to 7 toppings, but each topping can only be used once.…

A: 4 toppings can be chosen from 7 by 7C4 Ways 7C4 =

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: A single number cube is rolled twice. PART A Determine the number of possible outcomes. Explain how…

A: Single number cube is rolled twice. In Cube 1 to 6 number plot in each side. In First roll suppose…

Q: Determine the number of possible outcomes. Explain how you know you have found all the possible…

A: Here die is rolled twice. On each die there are total 6 possible outcomes.  Probability of getting…

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

A:

Q: You are to play a game of chess against a random opponent on the web. You say to yourself "There is…

A: Probability of winning=75%

Q: Roy is 4 years old and in the 69th percentile for neight in his age group. Vhat does this mean? Roy…

A: The percentile is used to measure the location of a data set.

Q: Brooke buys a bag of cookies that contains 5 chocolate chip cookies, 5 peanut butter cookies, 6…

A: Given: A bag of cookies contains: Chocolate chip cookies = 5 Peanut butter cookies = 5 Sugar cookies…

Q: 32. Daffa plans to invite her eleven friends to have dinner at her house. Due to being busy, the…

A: If each trial has only two possible outcomes, that is, success and failure, the probabilities of…

Q: On a 6 question multiple-choice test, where each question has 2 answers, what would be the…

A: GivenEach question has 2 answersso, p=12=0.5n=6x~Binomial(n=6,p=0.5)P(X=x)=(nx)×px×(1-p)n-x    ;…

Q: A student is writing a multiple choice test. Each question has 4 choices. If the test has 21…

A: Introduction: The binomial distribution is a discrete type probability distribution. It is a finite…

Q: 2. A student answers a multiple-choice question either by knowing the answer or by guessing. The…

A: n=5, p=40%

Q: Decide which of these numbers could not possibly be probabilities. Explain your answers.…

A: Rules of Probability:The probability of an event must lie between 0 and 1, inclusive.The sum of…

Q: A student takes a multiple-choice test that has  7questions. Each question has five choices. The…

A: Note: Hey there! Thank you for the question. We understand your query and are trying to explain it…

Q: ou decide to learn a new hobby and take up archery. You can hit the target 34% of the time. If you…

A: Given Data: The probability of hitting a shot on the target is: p=0.34 The total number of shots…

Q: Chang is watching his favorite soccer team playing a match. The odds against his favorite team…

A: As per bartleby guidelines we can solve only first question and rest can be reposted

Q: Elizabeth's school is selling 100 raffle-tickets to raise money for a new gymnasium. The grand-prize…

A: Probability values can't be negative. It takes the values between 0 to 1. If the probability value…

Q: Let's say you have a bag with 22 cherries. 10 of the cherries are sweet and 12 are sour. If you pick…

A: Given that there are total 22 cherries. Among them 10 cherries are sweet.  So, the probability that…

Q: A math test has 10 multiple choice questions each with 3 answers what's the probability to get a…

A: It is an important part of statistics. It is widely used.

Q: Joan and Cindy are on the same bowling league.  The probability that Joan scores more than 150 is…

A: Given that: Probability that Joan scores more than 150 = 0.4 Probability that Cindy scores more than…

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.