'The following table shows the results of a survey of 400 authors by a publishing company: New Authors Established Authors Total Successful 28 100 128 Unsuccessful 80 192 272 Total 108 292 400 Compute the relative frequency of the given event if an author as specified is chosen at random: An unsuccessful author is established.'
Added by Wayne S.
Step 1
There are 192 unsuccessful established authors out of a total of 400 authors. So, the probability is: $\frac{192}{400}$ Now, we can simplify this fraction: Show more…
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