momneedshelphmwk
09.06.2020 •
Mathematics
The workers' union at a particular university is quite strong. About 96% of all workers employed by the university belong to the workers' union. Recently, the workers went on strike, and now a local TV station plans to interview 4 workers (chosen at random) at the university to get their opinions on the strike. What is the probability that exactly 2 of the workers interviewed are union members?
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Ответ:
a straight line = 180 degrees so:
4x+16 + 92 = 180
4x +108 = 180
4x=72
x = 72/4 = 18
x= 18