kiarahurford kiarahurford

15-07-2016
Mathematics

contestada

In this case, assume that 179 eligible voters aged 18-24 are randomly selected. Suppose a previous study showed that among eligible voters aged 18-24, 22% of them voted.
Probability that exactly 42 voted

Respuesta :

15-07-2016

The binomial distribution applies here.
[tex]P(42\ voted)=179C42\times(0.22)^{42}\times(0.78)^{137}=0.063[/tex]

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