A sample of 54 oil industry executives was selected to test a questionnaire. One question about environmental issues required a yes or no answer.
Which of the following are possible events. (You may select more than one answer. Single click the box with the question mark to produce a check mark for a correct answer and double click the box with the question mark to empty the box for a wrong answer.)
30 of the 54 executives responded yes. Based on these sample responses, what is the probability that an oil industry executive will respond yes? (Round your answer to 2 decimal places.)
ANSWER TO SUBPART C:
Since, 30 of the 54 executives responded "Yes", Probability that an oil industry executive will respond "Yes" is 30/54,i.e; 5/9=0.55
ANSWER TO SUBPART B:
25 people respond "YES". Checked
It is a possible event as 25 out of the 54 can respond "YES" to the questionnaire.
13 people respond "YES". Checked
Similarly, this is also a possible event.
31 people respond "NO". Unanswered
This is a possible event.
59 people respond "NO". Unanswered
This is not a possible event as total of 54 people were called to attend the questionnaire.
The questionnaire fails to reach one executive. Unanswered
This may or may not be a possible event depending on the situation.
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