22% adults favor the use of unmanned drones by police agencies. Twelve U.S. adults are randomly selected. Find the probability that the number of U.S. adults who favor the use of unmanned drones by police agencies is (a) exactly three, (b) at least four, (c) less than eight. (a) Upper P left parenthesis 3 right parenthesis equals nothing (Round to three decimal places as needed.)
is the probability of an adult favouring use of unmanned drones
Number of points in the sample is
The distribution of random variable which is the number of people out of who favour use of unmanned drones by police agencies where is the probability of any one adult favouring use of unmanned drones is a Binomial distribution with parameters
with
We have
a) is the probability that exactly 3 adults of the sample of 12 people favour use of unmanned drones
b)
Which is
Which equals
c) which equals
Which is (Which actually becomes 1 when rounding to 3 decimal places so here I have rounded to 5 decimal places)
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22% adults favor the use of unmanned drones by police agencies. Twelve U.S. adults are randomly selected. Find the pro...
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0 37% auta tavar the use of unmanned drones by police agendet. Twelve U.S. dus are randomly selected. Find the probability that the number of us who lover the use of unmanned drones by police agencies is exactly tree, least four (c) less thanh (a) (3) (Round to three decimal places as needed) (6) Pix 24) - Round to the decimal places as needed) c) PIX) Round te decimal places as needed
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