Respondents of three different age groups took part in the survey about technology use. They were categorized into three groups depending on whether they have a basic cell phone, a smartphone, or they do not have a cell phone at all. Cell phone, smartphone Cell phone, not smartphone No cell phone 30-49 2,583 326 35 50-64 1,625 503 75 65+ 632 580 304 Round your answers to two decimal places. a. What is the probability that a randomly selected person from the sample is younger than 50? b. What is the probability that a randomly selected person from the sample uses a smartphone? c. What is the probability that a randomly selected person from the sample is younger than 50 and does not use a smartphone?

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
Question
Respondents of three different age groups took part in the survey about technology use. They were categorized into three groups depending
on whether they have a basic cell phone, a smartphone, or they do not have a cell phone at all.
Cell phone, smartphone
Cell phone, not smartphone
No cell phone
30-49
2,583
326
35
50-64
1,625
503
75
65+
632
580
304
Round your answers to two decimal places.
a. What is the probability that a randomly selected person from the sample is younger than 50?
b. What is the probability that a randomly selected person from the sample uses a smartphone?
c. What is the probability that a randomly selected person from the sample is younger than 50 and does not use a smartphone?
Transcribed Image Text:Respondents of three different age groups took part in the survey about technology use. They were categorized into three groups depending on whether they have a basic cell phone, a smartphone, or they do not have a cell phone at all. Cell phone, smartphone Cell phone, not smartphone No cell phone 30-49 2,583 326 35 50-64 1,625 503 75 65+ 632 580 304 Round your answers to two decimal places. a. What is the probability that a randomly selected person from the sample is younger than 50? b. What is the probability that a randomly selected person from the sample uses a smartphone? c. What is the probability that a randomly selected person from the sample is younger than 50 and does not use a smartphone?
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 4 steps

Blurred answer
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