Mathematics, 04.06.2020 13:20 proutyhaylee
Suppose that public opinion in a large city is 60% in favor of increasing taxes to support the alternatives to drug addiction treatment and 40% against such an increase. If an interview of a random sample of 400 people from this city is conducted, what is the approximate probability that more than 150 of these people will be against increasing taxes?
400 choose 150 times 0.60 to the 150 power times 0.40 to the 250 power.
400 choose 150 times 0.40 to the 150 power times 0.60 to the 250 power.
Probability of z greater than quantity 0.375 minus 0.60 end quantity over square root quantity of 0.60 times 0.40 over 400 end quantity.
Probability of z greater than quantity 0.375 minus 0.40 end quantity over square root quantity of 0.40 times 0.60 over 400 end quantity.
Probability of z greater than quantity 0.375 minus 0.40 end quantity over square root quantity of 0.375 times 0.625 over 400 end quantity.
Answers: 3
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Mathematics, 21.06.2019 22:20
The school track has eight lanes. each lane is 1.25 meters wide. the arc at each end of the track is 180. the distance of the home straight and the radii for the arcs in the 1st 4 lanes are given. s=85m r1=36.5m r2=37.75m r3=39m r4=40.25m part one: find the radii of lanes 5 through 8 of the track. show your work. part two: if max ran around lane one, how far did he run? show your work and explain your solution. part three: max wants to run a total of three laps around the track, choose two additional lanes (2-8) for him to run and find the distance around those two lanes. show your work and round to the hundredths. part 4: based on your lane choices in part three, what was the total distance max ran in the three laps around the track?
Answers: 2
Suppose that public opinion in a large city is 60% in favor of increasing taxes to support the alter...
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