An Introduction to Statistical Learning: with Applications in R (Springer Texts in Statistics)
13th Edition
ISBN: 9781461471370
Author: Gareth James
Publisher: SPRINGER NATURE CUSTOMER SERVICE
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Chapter 4, Problem 9E
a.
Explanation of Solution
Fraction of people
- It can be written as
b.
Explanation of Solution
Fraction of people
- Here
- It implies
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b) Given the following statistics, what is the probability that a woman has cancer if she has a positive mammogram result?
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Question 4
A university received 1000 applications for the undergraduate program every semester. Of all applicants, 150 had a CGPA score above 3.70. 520 applicants had a CGPA score between 3.50 and 3.70. 100 applicants had a score between 3.00 and 3.50. All other applicants had a score lower than 3.00.
What probability will a randomly selected applicant have a score lower than 3.00?
If this semester, the total of students who get the CGPA score lower than 3.00 is 20% of the total student received, and the number of the other students who get CGPA above 3.50 is the same. Find the number of students who get CGPA between 3.00 and 3.50?
In a recent study on world happiness, participants were asked to evaluate their current lives on a scale from 0 to 10, where O represents the worst possible life and 10
represents the best possible life. The responses were normally distributed, with a mean of 5.3 and a standard deviation of 1.9. Answer parts (a)-(d) below.
(a) Find the probability that a randomly selected study participant's response was loss than 4.
The probability that a randomly selected study participant's response was lons than 4 is (Round to four decimal placos as needed.)
Chapter 4 Solutions
An Introduction to Statistical Learning: with Applications in R (Springer Texts in Statistics)
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