OPMT 1197 Quiz 3 | Quiz 3- OPMT-1197-NE2 - Stats for Business/Industry - 48384 - Internet - 48384.202130
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Quiz3v11.docxOPMT 1197 Quiz 3 Mark: /12
Last Name: ____________________First Name:____________________ Student ID#:_____________
You are concerned that the incidence of smoking is increasing among young people. You create the table below that shows student ages in the columns and smokers or non-smokers in the rows.
|
|
Ages |
|
||
|
|
18 – 24 |
25 – 29 |
30 – 34 |
Total |
|
Non-smoker |
96 |
63 |
10 |
169 |
|
Smoker |
24 |
7 |
0 |
31 |
|
Total |
120 |
70 |
10 |
200 |
1. Overall, what percentage of students smoke? [3 mark]
ANSWER (Percentage, 2 decimal places):
1. What percentage of 18 to 24 year olds smoke? [3 marks]
ANSWER (Percentage, 2 decimal places):
1. If a student is 25 years or older, what is the probability he/she is a non-smoker? [3]
ANSWER (4 decimal places):
1. If a student smokes, what is the probability he/she is under age 30? [3 marks]
ANSWER (4 decimal places):
