Concept explainers
a.
Find
a.
Answer to Problem 43E
Explanation of Solution
Calculation:
It is given that 1 out of 20 children in Country U has food allergy and 10 children are randomly selected. The random variable x is defined as the number of children in the sample of 10 who has food allergy.
Here, there are fixed number of trials. That is, n = 10. There are two possible outcomes (child with food allergy and child without food allergy). The outcomes are independent, and the probability of success is fixed for each trial. Thus, the random variable x follows binomial distribution with n = 10.
The probability of success p is obtained as follows:
The binomial probability is
The required probability is obtained as given below:
Thus,
b.
Find
b.
Answer to Problem 43E
The value of
Explanation of Solution
Calculation:
The required probability is obtained as given below:
Thus, the value of
c.
Find
c.
Answer to Problem 43E
Explanation of Solution
Calculation:
The required probability is obtained as given below:
Thus,
d.
Find
d.
Answer to Problem 43E
Explanation of Solution
Calculation:
The required probability is obtained as given below:
Thus,
Want to see more full solutions like this?
Chapter 7 Solutions
Introduction to Statistics and Data Analysis
- Calculus For The Life SciencesCalculusISBN:9780321964038Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.Publisher:Pearson Addison Wesley,