Concept explainers
(a)
To Calculate: the row and column totals.
(a)
Explanation of Solution
Given:
Alcohol consumption | Smoked | Did not smoke |
Yes | 20 | 13 |
No | 48 | 96 |
Calculation:
Total of the row and column
Smoked | did not smoke | total | |
Yes | 20 | 13 | 20+13=33 |
No | 48 | 96 | 48+96=144 |
Total | 20+48=69 | 13+96=109 | 33+144=177 |
(b)
To Calculate: the percent the smoked among the drinkers and among the teetotallers and conclusion.
(b)
Explanation of Solution
Given:
Alcohol consumption | Smoked | Did not smoke |
Yes | 20 | 13 |
No | 48 | 96 |
Calculation:
The percent of smokers
Drinkers (Yes):
Entire sample:
It is observed that the proportion of smokers is very higher among those who drink, which indicating that drinkers are the most likely to smoke.
(c)
To construct: the bar graph which shows the percents graphically.
(c)
Explanation of Solution
Given:
Alcohol consumption | Smoked | Did not smoke |
Yes | 20 | 13 |
No | 48 | 96 |
Calculation:
Total of the row and column
Smoked | did not smoke | total | |
Yes | 20 | 13 | 20+13=33 |
No | 48 | 96 | 48+96=144 |
Total | 20+48=69 | 13+96=109 | 33+144=177 |
Graph:
This is bar graph which is showing the graph between alcohol consumption and percent which is looking forth which is almost all equal percentage.
Chapter 10 Solutions
Statistics Through Applications
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