A website reports that 70% of its users are from outside a certain country, and 60% of its users log on the website every day. Suppose that for its users from inside the country, that 80% of them log on every day. What is the probability that a person is from the country given that he logs on the website every day? Has the probability that he is from the country increased or decreased with the additional information?

Q: Suppose that 34% of people own dogs. If you pick two people at random, what is the probability that…

A: No.of people select at random = 2 The probability of one person own dogs is, P(one person own dogs)…

Q: According to TMUSS Quarterly (Totally Made-Up Sports Statistics) April 2017, the probability that…

A: Given information- The probability of a touchdown on their opening drive P (A) = 0.19 The…

Q: It is known that a certain basketball player will successfully make a free throw 90.71% of the time.…

A: From the given information,P = 90.71%= 0.9071So, q = 1- P = 1-0.9071 = 0.0929n = 11we have to find…

Q: If 14% of active duty soldiers in the U.S. Army are women, find the probability that if four…

A: Let X represent the random variable   n=4 p=0.14   X~ Binomial (4, 0.14)

Q: Suppose that the probability that there is another pandemic in the next year is 10%. And suppose…

A: Probability is a branch of mathematics or statistics which basically deals with the probability of…

Q: Suppose 1% of woman develop breast cancer. Physicians report that a mammogram accurately classifies…

A: This problem can be solved using Bayes probability theorem. According to this theorem, if A nd B are…

Q: While sitting on a park bench, Tanisha counts that 16 out of 20 people who walk by her have a pet…

A: The objective of this question is to find the probability of two mutually exclusive events: a person…

Q: According to TMUSS Quarterly (Totally Made-Up Sports Statistics) April 2017, the probability that…

A: Let A=The Tampa Bay Buccaneers will score a touchdown on their opening drive .B=Tampa Bay Buccaneers…

Q: According to some estimates, approximately 34.3% of the American population has A+ blood.  Suppose…

A: From the provided information, 34.3% of the American population has A+ blood that is p = 0.343…

Q: A survey shows that about 65% of all respondents chose to have dogs over cats. Suppose that 15…

A:

Q: A survey on campus revealed that 77% of the students felt that a new attendance policy was unfair.…

A: Given that the probability that the students felt that a new attendance policy was unfair is = 77%…

Q: If the probability that an individual with a Bachelor Degree in Underwater Basket-weaving will be…

A: Given that the probability that an individual with a Bachelor Degree in Underwater Basket-weaving…

Q: Suppose that 20% of people own dogs. If you pick two people at random, what is the probability that…

A: Given that, 20% of people own dogs. Sample size = 2

Q: If the probability that an individual with a Bachelor Degree in Underwater Basket-weaving will be…

A: Given Data: P( individual will be hired)=0.77

Q: According to TMUSS Quarterly (Totally Made-Up Sports Statistics) April 2017, the probability that…

A: Let A be the event of the bucs score a touchdown on opening drive. PA=0.12 Let B be the event that…

Q: If the probability that an individual with a Bachelor Degree in Underwater Basket-weaving will be…

A: It is given that probability that an individual with a Bachelor Degree in Underwater Basket-weaving…

Q: The testing division of a chip manufacturing company tests all manufactured chips individually, one…

A: Introduction to Geometric distribution: Suppose there are independent trials and the probability of…

Q: According to TMUSS Quarterly (Totally Made-Up Sports Statistics) April 2017, the probability that…

A: Given data:   The given probability that the Tampa Bay Buccaneers score on their opening is…

Q: Given that a random person has a degree in computer science, the probability that they work as a…

A: Given that a random person has a degree in computer science, the probability that they work as a…

Q: According to TMUSS Quarterly (Totally Made-Up Sports Statistics) April 2017, the probability that…

A: Formula :- P( A or B ) = P( A ) + P( B ) - P( A and B )

Q: April 2017, the probability that the Tampa Bay Buccaneers will score a touchdown on their opening…

A:

Q: Suppose on a given day, there is a 43% chance Emily will forget her wallet when going to work. What…

A: Let x follows binomial distribution with parameters n = 10 and p = 0.43   The pdf of binomial…

Q: What is the probability that they will both score a touchdown on the opening drive and have 3 or…

A: Let us define some events A : score a touchdown on the opening drive. B : have 3 or more sacks in…

Q: In a particular care facility, 8% of adults over 65 have Alzheimer’s. If a physician at this care…

A: Let us denote A= the event that a patient has Alzheimer’s  C= diagnosed positive Given that…

Q: If the probability of being hospitalized during a year is 0.25. Find the probability that no one is…

A: X has binomial distribution. X~binomial(n,p)n=3p=0.25probability mass function of X;…

Q: the probability an airplane arrives on time 80% of the time.Out of ten flights, what is the…

A: Given that  Probability an airplane arrives on time is 80%   P =0.80 (1-P) = 1-0.80 = 0.20 Sample…

Q: According to TMUSS Quarterly (Totally Made-Up Sports Statistics) April 2017, the probability that…

A: Let us denote: Tampa Bay Buccaneers will score a touchdown on their opening drive = A  the defense…

Q: Suppose on a given day, there is a 23% chance Emily will forget her wallet when going to work. What…

A: Introduction: Denote X as the random variable of interest here, which is the number of days that the…

Q: Assuming that these two are Independent, what is the probability of thunderstorms on both Memorial…

A: Concept: If the probability of occurrence of one event is not affected by the probability of…

Q: A flu test shows that about 31% of all patients visited the hospital. Suppose that 90 patients…

A:

Q: According to TMUSS Quarterly (Totally Made-Up Sports Statistics) April 2017, the probability that…

A: Obtain the probability that they will either score a touchdown on the opening drive or have 3 or…

Q: The local weather forecaster predicts that there is a 12% chance of rain on each day next week.…

A:

Q: If there is a 10% chance it will rain each day for the next week, what is the probability that it…

A:

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.