According to the Pew Internet & American Life Project, 54% of Internet users have a wireless connection to the Internet via a laptop, cell phone, game console, or other mobile device. Of these wireless users, 25% use Twitter to share updates about themselves. What is the probability that an Internet user has a wireless connection and uses Twitter?

Q: A study indicates that 73% of cars have have satellite radio. You randomly sample 8 cars. Find the…

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

Q: A sports forecaster says that there is a 40% probability of a team winning their next game.…

A: We have to find given odds against win.

Q: This problem involves students who have taken Calculus in high school. Assume that 15 percent of…

A: Probability quantifies the chances of happening an event. The probability values always lie in the…

Q: A jar contains 12 caramels, 7 mints and 16 dark chocolates. What is the probability of selecting a…

A: Amswer: We know that the probability is a how likely an event  Is to happen. Probability = favorable…

Q: It has been estimated that 21% of Americans are smokers. If five American adults are chosen at…

A: From the provided information, It has been estimated that 21% of Americans are smokers that is p =…

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: According to​ statista.com, 66.7​% of U.S. households have Cable TV​ / Satellite TV. If six…

A: From the given information, the percentage of U.S households have Cable TV​ / Satellite TV 66.7% and…

Q: What is the probability of selecting one person at random who is a smoker?

A: From the provided information, Total person = 100 Number of persons who smoke = 54

Q: It is known that 10% of adults can pass a fitness test. What is the probability at most 12 adults in…

A:

Q: According to a study, 75% of k-12 schools or districts in a country use digital content such as…

A: Given: 75% of k-12 schools or districts in a country use digital content such as ebooks, audio books…

Q: Sixteen percent of U.S. residents are in their thirties. Consider a group of seven U.S. residents…

A: Given datan=7p=0.16Binomial theoremProbability of x success out of n trial is given by

Q: In a classroom survey, 18 out of 30 students reported that they have a car. What is the probability…

A:

Q: Information was collected on those who attended the opening of a new movie. The analysis found that…

A:

Q: According to insurance records a car with a certain protection system will be recovered 87% of the…

A: It is given that n = 10 and p = 0.87.

Q: About 10% percent of workers (ages 16 years and older) in the United States commute to their jobs by…

A: The objective of this question is to find the probability that exactly four out of eight randomly…

Q: One survey showed that 59% of Internet users are somewhat concerned about the confidentiality of…

A: From the given information we find the probability.

Q: According to the Center for Disease Control (CDC), the percentage of boys who are diagnosed with…

A:

Q: When Donald Trump was campaigning for President , 65% of constituents supported his policy on…

A: Solution: From the given information, p=0.65 and n=100.

Q: Gotham government officials have a 50.8% chance of being corrupt. Determine the probability that a…

A: Given Gotham government officials have a 50.8% chance of being corrupt. let the probability that a…

Q: 80% of U.S. drivers over the age of 30 have had a speeding ticket and 55% of those have also been in…

A: Given,         Pspeeding ticket=0.80         Paccident while behind the wheel=0.55

Q: This problem involves students who have taken Calculus in high school. Assume that 35 percent of…

A: Solution: Let A be the event that students have taken calculus in high school and B be the event…

Q: A pew research center survey asked adults in the United States which technology would be very hard…

A: The binomial probability distribution is, PX=x=nxpx1-pn-x In the formula, n denotes the number of…

Q: Aaron Rodgers of the Green Bay Packers, three-time NFL MVP, completes 65% of his pass attempts. If…

A: Given,p=0.65n=10X~Binomial(n=10,p=0.65)P(X=x)=cxn px (1-p)n-x  ; x=0,1,2,....n

Q: A traffic control engineer reports that 75% of the vehicles passing through a checkpoint are from…

A: Probability of vehicles that pass within the check point that are from within the state = 75% = 0.75…

Q: A CNN/USA Today/Gallup poll in April 2005 reported that 75% of adult Americans were satisfied with…

A:

Q: The Australian sheep dog is a breed renowned for its intelligence and work ethic. It is estimated…

A:

Q: Transportation officials tell us that 90% of drivers wear seat belts while driving. What is the…

A: Let p be the probability that driver wear seat belt. n=600, p=0.90,  P(525<X<530)= ?

Q: In 2014, the percentage of the U.S. population that speak English only in the home is 78.9%. Choose…

A: We are given,The percentage of the U.S. population that speak English only in the home = p = 78.9% =…

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.