SOLUTION: A survey shows that 30% of all bikes are red. What is the probability that exactly 3 of the next 4 bikes to pass will be red?

Question 1036876: A survey shows that 30% of all bikes are red. What is the probability that exactly 3 of the next 4 bikes to pass will be red?
Answer by jorel555(1290) (Show Source): You can put this solution on YOUR website!
The probability of 3 bikes being red is .3*.3*.3=.027---The probability of a bike not being red is .7, so we have .027*.7=.0189. Since 3 bikes out of 4 can be chosen (4 choose 3) ways, we have 4 ways they can be arranged, which gives us 4*.0189=.0756, or 7.56% chance of 3 out of the next 4 bikes being red!!!!!!!!!
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