Question

Pickup Trucks In a survey, 510 U.S. adults were asked whether they drive a pickup truck...

Pickup Trucks In a survey, 510 U.S. adults were asked whether they drive
a pickup truck and whether they drive a Ford. The results showed that
three in ten adults surveyed drive a Ford. Of the adults surveyed that drive
Fords, two in nine drive a pickup truck. Find the probability that a randomly
selected adult drives a Ford and drives a pickup truck.

Homework Answers

Answer #1

Let the event “a randomly selected adult drives a Ford” as X.

It has been given that 3 in 10 adults drives a Ford.

Hence the probability that a randomly selected adult drives a Ford is P(X) =

Let the event that ' a randomly selected adult drives a pick-up truck' is Y

the probability that a randomly selected adult drives a pickup truck given that adult drives a Ford is

The probability that a randomly selected adult drives a Ford and drives a pickup truck.

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
In a random sample, people were asked if they drove cars or trucks/suv. In the survey,...
In a random sample, people were asked if they drove cars or trucks/suv. In the survey, 751 people responded that they drove a car and 1304 people said they drove a truck/suv. What is the probability of a randomly selecting a person who drives a car?
A recent survey of 1050 U.S. adults selected at random showed that 681 consider the occupation...
A recent survey of 1050 U.S. adults selected at random showed that 681 consider the occupation of firefighter to have very great prestige. Estimate the probability (to the nearest hundredth) that a U.S. adult selected at random thinks the occupation of firefighter has very great prestige.
Gallup poll consisted of 1012 randomly selected adults who were asked whether or not cloning of...
Gallup poll consisted of 1012 randomly selected adults who were asked whether or not cloning of humans should be allowed. 901 of the adults surveyed said that cloning should not be allowed. Construct a 98% confidence interval to estimate the true percentage of all adults who hold this belief. 1. State the Parameter 2. Find the point estimate 3. Check assumptions 4.Find the critical value 5. Find the margin of error 6. Find the confidence interval limits
In a survey, 150 high school students were asked whether they play sports. The survey also...
In a survey, 150 high school students were asked whether they play sports. The survey also recorded the grade of each of the participants. The responses are given below: Yes No Freshman 19 22 Sophomore 23 17 Junior 18 12 Senior 20 19 Use this table to determine each of the following probabilities. Write each answer as a percent rounded to one decimal place, i.e. 16.8%. Do not include the percent symbol. a) Find the probability that a randomly selected...
5)A national survey suggests that 25% of U.S. adults have a landline in their residence, 84%...
5)A national survey suggests that 25% of U.S. adults have a landline in their residence, 84% have a cell phone, and 21% have both. define the following: L= person has a landline in their residence, C= person has a cell phone. Answer the following questions using proper probability notation. a) What is the probability that a randomly selected U.S. adult has a landline or a cell phone? B)What is the probability that a randomly selected U.S. adult does not have...
A survey of U.S. adults found that 53% of the men believe that there is a...
A survey of U.S. adults found that 53% of the men believe that there is a link between playing video games and violent behavior. 10 Randomly selected men answer whether they believe there is a link between videogames and violent behavior. Find the probability that more than 7 men respond 'yes'.
A recent survey of 2,250 randomly selected U.S. residents asked whether or not they had used...
A recent survey of 2,250 randomly selected U.S. residents asked whether or not they had used the Internet for making travel reservations. There were 1,500 people who answered “yes,” and the remainder answered “no.” Let X be the number of people who answered “yes.” Estimate the proportion p from this information. Then calculate the probability that X is less than or equal to 1,525.
Records of 40 used passenger cars and 40 used pickup trucks were randomly selected to investigate...
Records of 40 used passenger cars and 40 used pickup trucks were randomly selected to investigate the difference in how long the owners kept their vehicles. For cars, the mean was 5.3 years with standard deviation 2.2 years. For pickup trucks, the mean was 7.1 years with standard deviation 3.0 years. Find a 95% confidence interval for the true difference in means. Add a sentence. (Note that these are all sample results.) Using the information in Problem One, test the...
A polling company conducts an annual poll of adults about political opinions. The survey asked a...
A polling company conducts an annual poll of adults about political opinions. The survey asked a random sample of 2190 adults whether they think things in the country are going in the right direction or in the wrong direction. 43​% said that things were going in the wrong direction. Complete parts a and b below. a). Calculate the margin of error for the proportion of all adults who think things are going in the wrong direction for 90% confidence. b).  Explain...
In September 2011, Gallup surveyed 1,004 American adults and asked them whether they blamed Barack Obama...
In September 2011, Gallup surveyed 1,004 American adults and asked them whether they blamed Barack Obama a great deal, a moderate amount, not much, or not at all for U.S. economic problems. The results showed that 53% of respondents blamed Barack Obama a great deal or a moderate amount. Calculate the 99% confidence interval for the proportion of all American adults who blame Barack Obama a great deal or a moderate amount for U.S. economic problems.