An official from the securities commission estimates that 90% of all online bankers have profited from the use of insider information. Assume that 15 online bankers are selected at random from the commission's registry. Find the probability that 12 or fewer online bankers have profited from insider information. (Find the nearest answer.) a. 18.41% b. 76.39% c. 87.32% d. 97.29% e. 60,20%

An official from the securities commission estimates that 90% of all online bankers have profited from the use of insider information. Assume that 15 online bankers are selected at random from the commission's registry. Find the probability that 12 or fewer online bankers have profited from insider information. (Find the nearest answer.) a. 18.41% b. 76.39% c. 87.32% d. 97.29% e. 60,20%

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

A. Out of 114 pet owners, 69 own dogs, 53 own cats, and 39 own both dogs and cats. If we randomly select one pet owner, what is the probability they own neither a dog nor a cat (i.e., they own only fish)? Calculate your answer as a percent accurate to one decimal place. B. Out of 123 students, 62 have finished both their math and science requirements, 19 have finished only their math requirement, 8 have finished only their science requirement, and the remaining have finished neither. If we randomly select one student, what is the probability they have finished at least one of the requirements? Calculate your answer as a percent accurate to one decimal place.
1. Find the probability that the person preferred cake batter ice cream. 2. Find the probability that the person surveyed was a child. 3. Find the probability that the person preferred mint chocolate chip or rocky road ice cream. 4. Find the probability that the person preferred bubble gum ice cream, given the person surveyed was a child. 5. Find the probability that the person surveyed was an adult, given that they liked vanilla ice cream.
Consider the poll of 1,000 voters across the country in the 2008 presidential election. The two-way table compares the amount of schooling the voter completed and who they voted for in the election. Use the two-way table to find the following probabilities. a. Find the probability that someone voted for "Others." B. Using the two-way table above, find P(college graduate or voted for Obama). C. Using the two-way table above, find P(postgraduate and voted for McCain).
Tonto Silverheels is a loan processor at the Loan Arranger, a business specializing in home refinance. Forty percent of the loan applications received by Tonto will qualify for a loan. What is the probability that for the next 20 loan applications that Tonto receives, the number qualifying for a loan is... a. 10 or fewer? b. Between 6 and 10? c. Exactly 6? d. Tonto gets a $200 commission on each qualifying loan, what is Tonto’s expected total commission from these 20 applications?
35% of all college students major in STEM (Science, Technology, Engineering, and Math). If 31 college students are randomly selected, find the following probabilities. Round your answers to 4 decimal places. a. Exactly 12 of them major in STEM. b. At most 11 of them major in STEM. c. At least 10 of them major in STEM. d. Between 10 and 15 (including 10 and 15) of them major in STEM.
70% of all bald eagles survive their first year of life. If 46 bald eagles are randomly selected, find the probability that a. Exactly 32 of them survive their first year of life. b. At most 31 of them survive their first year of life. c. At least 30 of them survive their first year of life. d. Between 27 and 31 (including 27 and 31) of them survive their first year of life
61% of all violent felons in the prison system are repeat offenders. If 44 violent felons are randomly selected, find the probability that A. Exactly 28 of them are repeat offenders. b. At most 28 of them are repeat offenders. c. At least 29 of them are repeat offenders. d. Between 26 and 32 (including 26 and 32) of them are repeat offenders.
70% of all bald eagles survive their first year of life. Give your answers as decimals, not percents. If 34 bald eagles are randomly selected, find the probability that a. Exactly 22 of them survive their first year of life. b. At most 24 of them survive their first year of life. c. At least 25 of them survive their first year of life. d. Between 21 and 29 (including 21 and 29) of them survive their first year of life. Submit Question
63% of all bald eagles survive their first year of life. If 39 bald eagles are randomly selected, find the probability that a. Exactly 23 of them survive their first year of life. b. At most 27 of them survive their first year of life. c. At least 25 of them survive their first year of life. d. Between 23 and 27 (including 23 and 27) of them survive their first year of life.
66% of all violent felons in the prison system are repeat offenders. If 34 violent felons are randomly selected, find the probability that a. Exactly 24 of them are repeat offenders. b. At most 22 of them are repeat offenders. c. At least 20 of them are repeat offenders. d. Between 21 and 25 (including 21 and 25) of them are repeat offenders.
If 20 percent of the people in a certain city use the emergency room at a hospital in a year. find these probabilities for a sample of 12 people. a. at most three used the emergency room. b. exactly three used the emergency room. c. at least five used the emergency room.
77% of all students at a college still need to take another math class. If 43 students are randomly selected, find the probability thata. Exactly 30 of them need to take another math class. b. At most 35 of them need to take another math class. c. At least 33 of them need to take another math class. d. Between 27 and 33 (including 27 and 33) of them need to take another math class.