It is estimated that one fourth of the general population has blood type A+. A sample of six people is selected at random. (Round your answers to four decimal places.)(a) What is the probability that exactly three of them have blood type A+?0.0330(b) What is the probability that at most three of them have blood type A+?

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Answered: It is estimated that one fourth of the…

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...

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Similar questions

A bag contains 46 U.S. quarters and four Canadian quarters. (The coins are identical in size.) If seven quarters are randomly picked from the bag, what is the probability of getting at least one Canadian quarter? (Round your answer to one decimal place.)
The following table describes the contents of a bag that contains red, green, blue, pink, and white marbles. Color Number of Marbles Red 23 Green 2 Blue 27 Pink 15 White 10 If you select a single marble out of the bag, what is the probability that it is a color other than white or blue? Express your answer as a fraction in lowest terms or a decimal rounded to the nearest millionth.
Giving a test to a group of students, the grades and genders are summarized below. Male Female A B 20 13 C Total 27 23 14 Next Question Total 38 26 64 If one student is chosen at random, find the probability that the student was female OR received a grade of "B". (Leave answer to four decimal places.)
Several friends chartered a boat for a day's fishing. They caught a total of 63 fish. The table below provides information about the type and number of fish caught. Determine the empirical probability that the next fish caught is a kingfish. Fish Number caught Grouper Shark Flounder Kingfish 11 20 6 26 P(kingfish) = (Simplify your answer. Type a fraction.)
Among the contestants in a competition are 46 women and 24 men. If 5 winners are randomly selected, what is the probability that they are all men? Round to six decimal places. A. 0.038660 B. 0.003512 C. 0.031008 D. 0.122546
1. Use this table for the following questions: Female Male TotalShort Hair 20 40 60 Long Hair 30 10 40 Total 50 50 100 a. Complete a total probability table.b. Complete a row probability tablec. Complete a column probability table.d. The probability that a student does not have long hair. _________e. The probability that a student is male or has short hair. ________f. The probability that a student is a female and has long hair. _________g. The probability that a student is male, given that the student has long hair. _________h. The probability that a student has long hair, given that the student is male. _________i. Of all the female students, the probability that a student has short hair. ________j. Of all students with long hair, the probability that a student is female. _________k. The probability that a student is female or has long hair.…
A bag contains 41 U.S. quarters and nine Canadian quarters. (The coins are identical in size.) If four quarters are randomly picked from the bag, what is the probability of getting at least one Canadian quarter? (Round your answer to one decimal place.)
If 35% of cows in a herd have Mad Cow disease, and a rancher randomly selects 7 cows, what is the probability exactly 4 of them have Mad Cow disease? Round to one decimal place. 13.0% 4.7% 26.8% O 14.4%
When sent a questionnaire, 50% of the recipients respond immediately. Of those who do not respond immediately, 60% respond when sent a follow-up letter. If the questionnaire is sent to 4 persons and a follow-up letter is sent to any of the 4 who do not respond immediately, what is the probability that at least 3 never respond? A D E (0.2) 4 + 4.(0.2) ³. (0.8) (0.2)4 + 4.(0.2).(0.8)³ (0.4) 4 + 4C (0.4) ³. (0.6) (0.9)4 + 4.(0.9) ³. (0.1) 4.(0.2) ³ (0.8)
Here is the probability model for the blood type of a randomly chosen person in the United States. Blood Type Probability O 0.47 A 0.2 B 0.05 AB 0.28 What is the probability that a randomly chosen American does not have type O blood? (Type your answer as a decimal).
n a large population, 60 % of the people have been vaccinated. If 4 people are randomly selected, what is the probability that AT LEAST ONE of them has been vaccinated?Give your answer as a decimal (to at least 3 places) or fraction.

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