The Georgetown, South Carolina, Traffic Division reported 40% of the high-speed chases involving automobiles result in a minor or major accident. During a month in which 150 high-speed chases occur, what is the probability that 50 or more will result in a minor or major accident?
use normal probability table to find the probability or use R
> pnorm(1.75)-0.5
[1] 0.4599408
> pnorm(15.08)-0.5
[1] 0.5
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