Find the probability that in four tosses of a fair die, the number 2 appear a. At no time b. Once c. Twice d. Thrice e. Four times

Q: A drug test is accurate 98% of the time. If the test is given to 2000 people who have not taken…

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Q: The Pew Research Center reports that they are only able to contact 76% of randomly selected…

A: From the provided information, The Pew Research Center reports that they are only able to contact…

Q: How can I tell whether to use the addition rule or the multiplcation rule when determining…

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Q: The amount of time spouses shop for anniversary cards can be modeled by an exponential distribution…

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Q: Develop the ability to calculate the probability that in a single trial, some event A occurs or some…

A: It is given that the considered events are A  and B.  Assuming the events A  and B are not disjoint,…

Q: Identify a commonly used graphical technique for portraying events and relationships among events.

A: Venn diagram:Venn diagram is a diagrammatic representation of sets that show the relationship…

Q: What are the chances of the teams making the finals?

A: Given that,Chances  of different teams making into the playoffs:1) probability of bears = 0.75 2)…

Q: What is the key advantage of the Logit Model over the Linear Probability Model?

A: Logic model- It is also defines as logistic Regression, is a binomial regression model. It  is used…

Q: Write down general probability rules.

A: Probability- The probability is type of ratio where it is compared that how many times an outcome…

Q: The probability of winning on an arcade game is 0.711. If you play the arcade game 18 times, what is…

A: Binomial distribution:The events that has exactly two possible outcomes (success or failure) follows…

Q: Ratio of probability of 3 successes in 5 independent trials to the probability of 2 successes in 5…

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Q: Example 5 Find Probabilities METEOROLOGY The temperatures for one month for a city in California are…

A: Given information : given that the temperatures for one month for a city in california are normally…

Q: "robability =

A: It is given that man claims he has extrasensory perception (ESP). The fair coin is flipped 28 times…

Q: Identify the probability of success for x∼B (12,0.8)

A: Given  X~B(n=12,p=0.8)

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: For a software company, a candidate has a success rate of p = 0.3for each attempt in their…

A: It is given that a candidate has a success rate of p=0.3 for each attempt in their interview. An…

Q: Use a Spreadsheet for steps and solutions. If a worker makes an average of three errors for every…

A: Given: A worker makes an average of 3 errors for every hour. Required: To find the probability that…

Q: Write a simplified report about the importance of studying probability in you real life?

A: Athletes and coaches use probability to find the best sports strategies for game and compition.…

Q: The probability that a student pilot passes the written test for a private pilot's license is 0.55.…

A: Probability distributions are of two types, discrete and continuous distributions. Binomial…

Q: Define Probability using various sources. Present a scenario where you might collect data and use…

A: A measure of the possibility that an event will occur is called probability. It also indicates the…

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Q: In China approximately 70% of people are either vaccinated or have immunization from a previous…

A: Let us define the following events: E1: A person is vaccinatedE2: A person is not vaccinated…

Q: event has a 50% chance of occurring

A: Take a coin, flip it twice. If you get the same result both times, ignore the pair of flips and try…

Q: Explain application of probability in social science.

A: The concept of probability is especially useful when one has selected a sample from the population…

Q: Suppose a gambler wins P50 if the sum of dots in a toss of a pair of fair dice is either 7 or 11,…

A: When tossing a pair of fair dice, the outcomes are, The outcomes for the sum 7 are (1, 6), (2, 5),…

Q: Tennis great Roger Federer made 65% of his first serves in the 2011 season. When Federer made his…

A: Given data; First serve  = 65% Fisrt serve win = 78% Second serve win = 57% To find:  the…

Q: How can we compare the probability value with the α level?

A: The comparison of the probability value (p-value) with the α level is based on the decision rule of…

Q: A Statistics student was asked to solve the problem below. See the student’s attempt at the question…

A: The Poisson distribution: A discrete random variable X is said to have a Poisson distribution with…

Q: On a  3 day vacation the forecast predicts a 75% chance if rain. What's the probability of it…

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Q: Test whether patients getting Treatment 1 are more likely to survive, if 62 out of 82 getting…

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Q: A 10-year study conducted by the American Heart Association provided data on how age, blood…

A: Given the data on how age, blood pressure, and smoking relate to the risk of strokes asRiskAgeBlood…

Q: The probability that you will win a game is p=0.83p=0.83. If you play the game 838 times, what is…

A: It is given that p =0.83.

Q: Explain the concept of probability and statistics.

A: Statistics: Statistics refers to data and the methods of collecting numerical data, analyzing it,…

Q: 46. You and your friend are two of 10 students eligible to be selected to go to the BETA…

A: Given that - Total number of students who are eligible for BETA competition = 10

Q: 81% of students say that they do not get enough sleep

A: Given that  81% of students said that they do not get enough sleep. P=81% = 0.81 q= (1-0.81) = 0.19…

Q: If the probability of dropping an egg is 0.01, what is the probability of not dropping the egg? Show…

A: The probability of dropping an egg is 0.01.

Q: Apple company sells their phone at an average rate of 1 per day. Estimate the probability that the…

A: Solution-: We want to find, P[the company sells more than 10 phones in a week]=?

Q: A hacker breaking into a computer system has a 15% chance of breaking into a system in 2 minutes, a…

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Q: (c) Give the test statistic and the p-value. Round your answer for the test statistic to two decimal…

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