(a) What is the probability that 3 of the faculty have blood type O-negative? (Round your answer to the nearest thousandth).

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...
icon
Related questions
icon
Concept explainers
Question
Suppose a researcher goes to a small college of 200 faculty, 12 of which have blood type O-
negative. He obtains a simple random sample of n= 20 of the faculty. Let the random variable X
represent the number of faculty in the sample of size that have blood type O-negative.
(a) What is the probability that 3 of the faculty have blood type O-negative? (Round youranswer
to the nearest thousandth).
(b) What is the probability that a none (x= 0) of the faculty has blood type O-negative? (Round
your answer to the nearest thousandth).
Transcribed Image Text:Suppose a researcher goes to a small college of 200 faculty, 12 of which have blood type O- negative. He obtains a simple random sample of n= 20 of the faculty. Let the random variable X represent the number of faculty in the sample of size that have blood type O-negative. (a) What is the probability that 3 of the faculty have blood type O-negative? (Round youranswer to the nearest thousandth). (b) What is the probability that a none (x= 0) of the faculty has blood type O-negative? (Round your answer to the nearest thousandth).
Expert Solution
steps

Step by step

Solved in 5 steps with 6 images

Blurred answer
Knowledge Booster
Conditional Probability, Decision Trees, and Bayes' Theorem
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, probability and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
Probability
ISBN:
9780134753119
Author:
Sheldon Ross
Publisher:
PEARSON
A First Course in Probability
A First Course in Probability
Probability
ISBN:
9780321794772
Author:
Sheldon Ross
Publisher:
PEARSON