(a).
To compare: Passenger fate by ticket class using bar graph or a histogram.
Bar graph is better.
Given:
Fate of Titanic Passengers:
Concept Used:
Bar graph is statistical representation of categorical data with rectangular bars.
Histogram is an approximate representation of the distribution of numerical data.
Calculation:
Here, Bar graph is better as histograms are not appropriate for categorical variables.
Conclusion:
Bar graph is better.
b.
To check: People’s fate and their ticket class are independent.
No, people’s fate and their ticket class weren’t independent.
Given:
Fate of Titanic Passengers:
Calculation:
In the table:
Conclusion:
No, people’s fate and their ticket class weren’t independent.
Chapter 10 Solutions
PRECALCULUS:GRAPHICAL,...-NASTA ED.
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