The following contingency table gives the results of a sample survey of South African male & female respondents with regard to their regular mode of transport: What is the probability of selecting a respondent who is male, given that they travel by bus? What is the probability of selecting a respondent who is female or who travels by taxi? What is the probability of randomly selecting a respondent from the sample who does not travel by taxi?

The following contingency table gives the results of a sample survey of South African male & female respondents with regard to their regular mode of transport: What is the probability of selecting a respondent who is male, given that they travel by bus? What is the probability of selecting a respondent who is female or who travels by taxi? What is the probability of randomly selecting a respondent from the sample who does not travel by taxi?

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter1: Fundamental Concepts Of Algebra

Section: Chapter Questions

Problem 52RE

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Question

The following contingency table gives the results of a sample survey of South
African male & female respondents with regard to their regular mode of
transport:

What is the probability of selecting a respondent who is male, given that
they travel by bus?

What is the probability of selecting a respondent who is female or who travels by taxi?

What is the probability of randomly selecting a respondent from the
sample who does not travel by taxi?

REGULAR MODE OF TRANSPORT
Car
Bus
Тaxi
ТОTAL
No. of Females
50
100
10
160
No. of Males
75
95
70
240
TOTAL
125
195
80
400

Definition Definition Measure of central tendency that is the value that occurs most frequently in a data set. A data set may have more than one mode if multiple categories repeat an equal number of times. For example, in a data set with five item—3, 5, 5, 29, 473—the mode is 5 because it occurs twice and no other value occurs more than once. On a histogram or bar chart, the element with the highest bar represents the mode. Therefore, the mode is sometimes considered the most popular option. The mode is useful for nominal or categorical data (e.g., the most common color car that users purchase), but it is problematic for continuous data because it is more likely not to have any value that is more frequent than the other.

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