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The probability that traffic lights on a certain road will be green is 0.6. When a driver on that road approaches two traffic lights in a row, X is the number of traffic lights that are green.

What is P(X=1)?

 

Enter your answer, as a decimal, in the box.

P(X=1) = 

adore.nuk  Feb 14, 2018
 #1
avatar+92888 
+3

2C1*0.6*0.4=2*0.6*0.4=0.48

Melody  Feb 14, 2018

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