![Pearson eText for Essentials of Statistics -- Instant Access (Pearson+)](https://www.bartleby.com/isbn_cover_images/9780137517374/9780137517374_largeCoverImage.gif)
Concept explainers
Sampling Eye Color Based on a study by Dr. P. Sorita Soni at Indiana University, assume that eye colors in the United States are distributed as follows: 40% brown, 35% blue, 12% green, 7% gray, 6% hazel.
a. A statistics instructor collects eye color data from her students. What is the name for this type of sample?
b. Identify one factor that might make the sample from part (a) biased and not representative of the general population of people in the United States.
c. If one person is randomly selected, what is the probability that this person will have brown or blue eyes?
d. If two people are randomly selected, what is the probability that at least one of them has brown eyes?
![Check Mark](/static/check-mark.png)
Want to see the full answer?
Check out a sample textbook solution![Blurred answer](/static/blurred-answer.jpg)
Chapter 4 Solutions
Pearson eText for Essentials of Statistics -- Instant Access (Pearson+)
- Holt Mcdougal Larson Pre-algebra: Student Edition...AlgebraISBN:9780547587776Author:HOLT MCDOUGALPublisher:HOLT MCDOUGALCollege Algebra (MindTap Course List)AlgebraISBN:9781305652231Author:R. David Gustafson, Jeff HughesPublisher:Cengage LearningGlencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw Hill
![Text book image](https://www.bartleby.com/isbn_cover_images/9780547587776/9780547587776_smallCoverImage.jpg)
![Text book image](https://www.bartleby.com/isbn_cover_images/9781305652231/9781305652231_smallCoverImage.gif)
![Text book image](https://www.bartleby.com/isbn_cover_images/9780079039897/9780079039897_smallCoverImage.jpg)
![Text book image](https://www.bartleby.com/isbn_cover_images/9781938168383/9781938168383_smallCoverImage.gif)