Chapter 3 Assignmen You have surveyed 100 randomly selected people 18 to 35 years old, and 100 randomly selected people 36 years old and over to determine the rates of smartphone use in different age groups. The results are shown in the table below. Use this table to answer questions 1-5 below. 18-35 36 and over 46 Total Smartphone No smartphone Total 57 103 13 44 57 70 90 160 Assuming we are selecting a single individual at random from this group, what is the probability that: 1. The individual uses a smartphone? 2. The individual is 18 to 35 and uses a smartphone? 3. The individual uses a smartphone or is 36 and over?
Chapter 3 Assignmen You have surveyed 100 randomly selected people 18 to 35 years old, and 100 randomly selected people 36 years old and over to determine the rates of smartphone use in different age groups. The results are shown in the table below. Use this table to answer questions 1-5 below. 18-35 36 and over 46 Total Smartphone No smartphone Total 57 103 13 44 57 70 90 160 Assuming we are selecting a single individual at random from this group, what is the probability that: 1. The individual uses a smartphone? 2. The individual is 18 to 35 and uses a smartphone? 3. The individual uses a smartphone or is 36 and over?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:**Chapter 3 Assignment**
You have surveyed 100 randomly selected people 18 to 35 years old, and 100 randomly selected people 36 years old and over to determine the rates of smartphone use in different age groups. The results are shown in the table below. Use this table to answer questions 1 – 5 below.
| | 18-35 | 36 and over | Total |
|------------|-------|-------------|-------|
| Smartphone | 57 | 46 | 103 |
| No smartphone | 13 | 44 | 57 |
| **Total** | 70 | 90 | 160 |
Assuming we are selecting a single individual at random from this group, what is the probability that:
1. The individual uses a smartphone?
2. The individual is 18 to 35 and uses a smartphone?
3. The individual uses a smartphone or is 36 and over?
4. The individual uses a smartphone, given that they are 18 to 35?
5. The individual is 18 to 35, given that they use a smartphone?
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