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Thepotemich [5.8K]
3 years ago
12

In arguing against the death penalty, Amnesty International has pointed out supposed inequities, such as the many times a black

person has been given the death penalty by an all-white jury. If jurors are selected randomly from an adult population, find the probability that all 12 jurors are white when the population is (a) 90% white and (b) 50% white.
Mathematics
1 answer:
uysha [10]3 years ago
5 0

Answer:

(a) 0.2824

(b) 0.0002441

Step-by-step explanation:

Assuming that the population is large enough to behave as a binomial distribution (between whites and non-whites), the probability of 12 out of 12 juros being white is:

P(w=12) = p(w)^{12}

Where p(w) is the proportion of the population that is white:

(a) for p = 0.90

P(w=12) = 0.90^{12}\\P(w=12) =0.2824

The probability is 0.2824.

(b) for p = 0.50

P(w=12) = 0.50^{12}\\P(w=12) =0.0002441

The probability is 0.0002441.

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