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.  

answer:

d. because dr. laguardia selected a widely used measure, his study generalizes to has strong external validity. external validity has limited external validity. other applications of this measure.

the widely used measure that he applied to his experiment was the benton facial recognition test. it employed on to football players and as result, only players who suffered brain concussions did not pas this test. and although it has an external validity, it is limited because it isn't general to apply to other population.

usually, however, secession was popular enough without the of community leaders. prominent unionists, on the other hand, were a major reason that texas did not secede before march 1861. the most important of these was sam houston, the governor of the state from 1859 to 1861.

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