The contingency table below shows a random sample of 100 adults and each one's MOST favourite...
The contingency table below shows a random sample of 100 adults and each one's MOST favourite leisure activity while classifying them into two age categories.
|
Sports |
TV |
Reading |
Total |
|
|
18 to 40 years old |
20 |
10 |
10 |
40 |
|
Older than 40 years old |
20 |
25 |
15 |
60 |
|
Total |
40 |
35 |
25 |
100 |
If a person older than 40 years old is randomly selected, then what is the probability that this person likes TV or reading?
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The contingency table below shows a random sample of 100 adults
and each one's MOST favourite...
The contingency table below shows marital status for 100 randomly selected adults by gender. Find the...
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