Question 3.7 (a) (b) (c) and (d) With reference to Exercise 3.5.which of the thr

Question

Question 3.7 (a) (b) (c) and (d)

With reference to Exercise 3.5.which of the three pairs of events, A and B, A and C, and B and C, are mutually exclusive? Two professors and 3 graduate assistants are at least one professor and one graduate assistant have to be present at all times. Using two coordinates so that (1, 3), for example, represents the event that one professor and 3 graduate assistants are present, draw a diagram similar to that of Figure 301 showing the points of the corresponding sample space. Describe in words the events which are represented by B = {(1, 3), (2, 3)}, C = {(1, 1), (2, 2)}, and D = {(1, 2),(2, 1)}. With reference to part (b), express C ? D symbolically by listing its elements, and also express this event in words. With reference to part (b), are B and D mutually exclusive? For each of following experiments, decide whether it would be appropriate to use a sample space which is finite, countable infinite, or continuous. The amount of cosmic radiation to which passengers are exposed during a transcontinental jet flight is measured by means of a suitable counter.

Explanation / Answer

b)B,C,D events are exhaustive events c)C U D={(1,1),(2,2),(1,2),(2,1)} d)yes,they are mutually exclusive

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