The customer service department of H&R Block received a total of 235 telephone requests for a tip-sheet on personal tax or corporate tax. The following table summarizes callers' primary area of interest, and how they first heard about the tip-sheet. Topic of most interest to caller Personal tax Corporate tax How the caller first heard about the report Radio Newspaper Television Internet 34 36 20 70 26 14 20 15 What is the probability a caller became aware of the tip-sheet either by radio or newspaper given her primary interest is corporate tax?