The following table shows the results of a survey of authors by a (fictitious) p

Question

The following table shows the results of a survey of authors by a (fictitious) publishing company. HINT [See Example 5.] New AuthorsEstablished Authors Total Successful Unsuccessful Total 19 13 32 6 19 41 Consider the following events: S: an author is successful; U: an author is unsuccessful; N: an author is new; and E: an author is established. Describe the events Nn Uand N U U in words. N n U is the event that an author isSelect N U U is the event that an author is Select... M. Use the table to compute n(N n U) and n(N U U). Need Help? Read it

Explanation / Answer

N intersection U is the event that an author is new and unsuccessful

N union U is the event that an author is new or unsuccessful.

n(N n U) = 6.

n(N U U) = 3 + 6 + 13 = 22.

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