Suppose 70% of all students live in dorms. Of those who live in dorms, 40% of...

Suppose 70% of all students live in dorms. Of those who live in dorms, 40% of them eat breakfast. Of those who don’t live in dorms, 30% eat breakfast.

Make a tree from this information. Label all the probabilities.

Make a table from this information. Label everything. Show your work.

What percentage of allstudents eat breakfast?

What rule/law do we use to answer the previous question?

Multiplication rule
Law of total probability
Bayes rule
Addition Rule

If a randomly selected student eats breakfast, what is the chance that they live in a dorm?
What rule/law do we use to answer the previous question?

Multiplication rule
Law of total probability
Bayes rule
Addition Rule

Expert Solution

For Further queries, please comment below.

Thank you.

milcah answered 7 months ago

Contrast the characteristics of people who live in individualistic cultures from those who live in collectivistic...

Contrast the characteristics of people who live in individualistic cultures from those who live in collectivistic cultures.

In a local university, 40% of the students live in the dormitories. A random sample of...

In a local university, 40% of the students live in the dormitories. A random sample of 80 students is selected for a particular study. The probability that the sample proportion (the proportion living in the dormitories) is at least 0.30 is Select one: a. 0.0336 b. 0.9664 c. 0.9328 d. 0.4664

Suppose that for all Miami University STA 261 students, the average distance that they live from...

Suppose that for all Miami University STA 261 students, the average distance that they live from campus is 12.2 miles with a standard deviation of 8.0 miles. A random sample of 49 Miami university STA 261 students was taken, and the sample average distance that they live from campus was calculated. a. what is the shape of the population distribution? Briefly explain your response b. What is the probability that a randomly selected MU STA 261 student lives at least...

Problem 5 a) Suppose that, in a random sample of 40 accounting students who had their...

Problem 5 a) Suppose that, in a random sample of 40 accounting students who had their second co-op term in W19, the sample mean and hourly wage and standard deviation were $20.10 and $3.15, respectively. Calculate a 95% confidence interval for the mean hourly wage of all accounting students with a second co-op term in W16. Interpret your interval. b) Suppose that based on historic data accounting students on their first co-op term typically earn an average of $17.84 per...

Suppose that, for students who are enrolled in college algebra, 72 percent are freshman, 40 percent...

Suppose that, for students who are enrolled in college algebra, 72 percent are freshman, 40 percent are female, and 25 percent are female and freshman. Your answers should be entered as decimals and rounded to three decimal places. (A) one student will be selected at random. What is the probability that the selected student will be a freshman or female (or both)? ___ (B) one student will be selected at random. What is the probability that the selected student will...

According to the Institute for Students in Shackles, 70% of all college students in a recent...

According to the Institute for Students in Shackles, 70% of all college students in a recent year graduated with student loan debt. The University of Florida reports that only 52% of its graduates from a random sample of 500 students have student loan debt. Use a hypothesis test to determine if there is enough evidence to support UF’s claim that student loan debt is less. a) State your null and alternative hypothesis. b) Find p-hat, SD, Z, and the P-value

40% of all customers who enter a store will make a purchase. Suppose that 6 customers...

40% of all customers who enter a store will make a purchase. Suppose that 6 customers enter the store and that these customers make independent purchase decisions. Round answers to four decimal places. (1) Calculate the probability that exactly five customers make a purchase. Probability (2) Calculate the probability that at least three customers make a purchase. Probability (3) Calculate the probability that two or fewer customers make a purchase. Probability (4) Calculate the probability that at...

A researcher wants to know the proportion of students at the university who live in residence....

A researcher wants to know the proportion of students at the university who live in residence. A sample of 50 students was taken and the researcher found 25 of them lived in residence. What is the 99% confidence interval for the proportion of students who live in residence?

10. Suppose the proportion of all college students who have changed their major in the last...

10. Suppose the proportion of all college students who have changed their major in the last two semesters is 60%. If a class of 200 students is considered. What is the probability that the proportion of students who may change their major in the next 2 semesters are more than 115?

suppose the proportion of all college students who have used marijuana in the past 6months is...

suppose the proportion of all college students who have used marijuana in the past 6months is p=0.40 in a class of 200 students that are representative of all college students would it be unusual for the proportion who have used marijuana in the past 6 months to be less than 0.32? Explain how you made your decision in this question

Question