A sample of 2000 households is surveyed for their purchase behavior for mobile phones. Table 1: ACTUALLY PURCHASED PLANNED TO PURCHASE Yes No Total Yes 800 300 1100 No 100 800 900 Total 900 1100 2000 What is the sample space? Give examples of simple events and joint events. What is the simple probability of the event ‘planned to purchase’? Using this, show how marginal probability is related to simple probability.
A sample of 2000 households is surveyed for their purchase behavior for mobile phones. Table 1: ACTUALLY PURCHASED PLANNED TO PURCHASE Yes No Total Yes 800 300 1100 No 100 800 900 Total 900 1100 2000 What is the sample space? Give examples of simple events and joint events. What is the simple probability of the event ‘planned to purchase’? Using this, show how marginal probability is related to simple probability.
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 50E: Flexible Work Hours In a recent survey, people were asked whether they would prefer to work flexible...
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Example 1: Mobile Phones and Sim Cards
- A sample of 2000 households is surveyed for their purchase behavior for mobile phones.
Table 1:
|
ACTUALLY PURCHASED |
|
||
PLANNED TO PURCHASE |
Yes |
No |
Total |
|
Yes |
800 |
300 |
1100 |
|
No |
100 |
800 |
900 |
|
Total |
900 |
1100 |
2000 |
|
- What is the
sample space ? - Give examples of simple events and joint events.
- What is the simple probability of the
event ‘planned to purchase’? Using this, show how marginal probability is related to simple probability.
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