Selected answer is not correct. FYI The Human Resources (HR) group at a large ac
ID: 3299642 • Letter: S
Question
Selected answer is not correct. FYI
The Human Resources (HR) group at a large accounting firm interviews prospective candidates for new hires. After each interview, the firm rates the candidate on a 10-point scale, with the rating 10 denoting exceptionally and 6 candidates on Tuesday. The outcomes of these 12 ratings form the sample space. Determine if the following statement is true or false. The events A 13 candidates on Monday rate above 7) and B [two candidates on Tuesday rate above 7) are disjoint events. Choose the correct answer below. OA. True O B. False, both events could happen. C. False, the events are mutually exclusive, not disjoint. False, the events are dependent, not disjoint. ( D.Explanation / Answer
A and D are right answer for the above question. Please read through my explanation to get the details. leave a comment in case I can help you with your questions on my attempt.
1.Yes, since the one event has got no effect or relation with the other, the events A and B are disjoint. Outcomes of events A and B are on different dates and hence don't depend on each other.
So, A.True, they are disjoint events
2.
To make you understand conceptually, A is an event of getting 6 candidates better or equal to 8
B and C are respective events on their days ( i.e. Monday and Tuesday). One doesn't effect the others
Also, A happens when B and C happen. But remember A can also happen when you get 1 and 5, or 4 and 2, or 2 and 4 or 3 and 3 candidates more or equal to 8 on Monday and Tuesday respectively.
So, intersection of B and C is just a subset of A
D. is right option
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