Atelevision poll of 151 persons found that 68 watched ""law and disorder""; 61 watched ""25""; 52 watched ""the tenors""; 16 watched both ""law and disorder"" and ""25""; 25 watched both ""law and disorder"" and ""the tenors""; 19 watched both ""25 "" and ""the tenors""; and 26 watched none of these shows. how many persons watched all three shows?

The answer is 4.

Explanation:

If we are trying to know how many people watched the show, we have to substract 26 that watched none of the shows, so:

151-26=125

Now that we know the numbers, the easiest way to know the "x" is with a Venn Diagram. But the equation is also quiet simple.

125(total people)-68(Law and Disorder)-61(25)-52(The Tenors)+16(Law and Disorder"" and ""25"")+25("Law and Disorder"" and ""The Tenors")+19(""25 "" and ""The Tenors"") = 4

That is: 15-68-61-52+16+25+19=4

4 people watch all three shows.  

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- "milgram's work was conducted in the early 1960s before the current.the studies ignited a debate about the ethical treatment of participants. what appear to be dangerous, if not deadly, electric shocks and the by today's ethical standards, many questions about the research have gone unanswered."