Asked by Sarita
According to a survey 35% of adults are against using animals for research. Assume that this result holds true for the current population of all adullts. Let X be the number of adults who are against using animals for research in a random sample of 2 adults.
Find the probability distribution of X
Find the probability distribution of X
Answers
Answered by
drwls
P(0) (the probability none are against) = (0.65)^2 = 0.4225
P(1) = 2*(0.65)(0.35) = 0.4550
P(2) (both against) = 0.1225
The sum is 1.00
The "expectation value" (the average of many trials) is 0.70
P(1) = 2*(0.65)(0.35) = 0.4550
P(2) (both against) = 0.1225
The sum is 1.00
The "expectation value" (the average of many trials) is 0.70
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