A study by Peter D. Hart Research Associates for the Nasdaq Stock Market revealed that 43% of all American adults are stockholders. In addition, the study determined that 75% of all American adult stockholders have some college education. Suppose 37% of all American adults have some college education. An American adult is randomly selected. a)What is the probability that the adult does not own stock? b)What is the probability that the adult owns stock and has some college education? C)What is the probability that the adult owns stock or has some college education?example d. What is the probability that the adult has neither some college education nor owns stock? e. What is the probability that the adult has some college education and owns no stock?

A study by Peter D. Hart Research Associates for the Nasdaq Stock Market revealed that 43% of all American adults are stockholders. In addition, the study determined that 75% of all American adult stockholders have some college education. Suppose 37% of all American adults have some college education. An American adult is randomly selected. a)What is the probability that the adult does not own stock? b)What is the probability that the adult owns stock and has some college education? C)What is the probability that the adult owns stock or has some college education?example d. What is the probability that the adult has neither some college education nor owns stock? e. What is the probability that the adult has some college education and owns no stock?

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

See similar textbooks

Similar questions

2)
About 8% of males are colorblind. A researcher needs colorblind subjects for an experiment and begins checking potential subjects. a. On average, how many men should the researcher expect to check before finding one who is colorblind? b. What's the probability that she won't find anyone who is colorblind among the first 4 men she asks? c. What's the probability that the first colorblind man found will be the 6" man checked? d. What's the probability that she finds someone who is colorblind before checking the 7th man?
In the United States, voters who are neither Democrat nor Republican are called Independent. It is believed that 10% of voters are Independent. A survey asked 26 people to identify themselves as Democrat, Republican, or Independent. A. What is the probability that none of the people are Independent? B. What is the probability that fewer than 6 are Independent? C. What is the probability that more than 3 people are Independent?
The percentage of mechanical-, civil-, aeronautical-, industrial-, and chemical-engineer- ing students in the course, Engineering Mathematics, is, respectively, 25, 20, 15, 22, and 18. The probability of a mechanical-, civil-, aeronautical-, industrial-, and chemical-en- gineering students getting the grade A is 0.7, 0.6, 0.8, 0.5, and 0.65, respectively. If a student chosen at random at the end of the semester earned an A in the course, find the probability of the student belonging to mechanical engineering.
In a recent poll of female college students, 70% stated that they plan to graduate with a STEM degree. A math teacher decides to randomly sample 15 female college students. A. Find the probability that exactly 6 out of the 15 plan to graduate with a STEM degree. B. Find the probability that between 5 and 9 (inclusive) out of the 15 plan to graduate with a STEM degree. C. Find the probability that at least 7 out of the 15 plan to graduate with a STEM degree. D. Find the expected number of female college students out of the 15 that plan to graduate with a STEM degree.
6. Clinical trials have shown that 90% of the patients with severe migraine experience relief of their pain after taking the drug Nimodipine. Suppose 15 migraine patients try Nimodipine. a. What is the probability all of the patients experience relief? b. What is the probability only 10 patients experience relief? What is the probability at least 12 patients experience relief? d. What is the probability at most 10 patients experience relief? e. How many are expected to experience relief?
In a study by Peter D. Hart Research Associates for the Nasdaq Stock Market, it was determined that 20% of all stock investors are retired people. In addition, 40% of all U.S. adults invest in mutual funds. Suppose a random sample of 25 stock investors is taken. a. What is the probability that exactly eight are retired people? b. What is the probability that 10 or more are retired people? c. How many retired people would you expect to find in a random sample of 25 stock investors? d. Suppose a random sample of 20 U.S. adults is taken. What is the probability that exactly eight adults invested in mutual funds? e. Suppose a random sample of 20 U.S. adults is taken. What is the probability that fewer than five adults invested in mutual funds? f. Suppose a random sample of 20 U.S. adults is taken. What is the probability that exactly one adult invested in mutual funds? g. Suppose a random sample of 20 U.S. adults is taken. What is the probability that 11 or more adults invested in mutual…
7. According to a college survey, 22% of all students work full time. In a survey of 14 students, what is the probability that no more than 2 of them work full time?
In a representative household telephone survey of 2,876 adults, 15% reported that they own at least one gun. Of those that own a gun, 3% own a handgun. Suppose that one of the 2,876 adults surveyed is randomly selected. a. What is the probability that the adult owns at least one gun? b. What is the probability that the adult owns at least one gun and the gun is a handgun? a. The probability that the adult owns at least one gun is (Simplify your answer. Type an integer or a decimal. Do not round.)
At a particular college, 40% of students receive an academic scholarship, 85% of students live on campus, and 30% of students live on campus and receive an academic scholarship. 1. What is the probability a student receives a scholarship at this college, given they live on campus? 2. What is the probability a student lives on campus, given they receive a scholarship?
Coronary bypass surgery: A healthcare agency reported that 84% of poeple who had coronary bypass surgery in 2008 were over the age of 65. Fourteen coronary bypass patiens are sampled. (a) What is the probability that exactly 8 of them are over the age of 65?