+0  
 
0
2351
1
avatar+525 

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) = 

 Feb 14, 2018
 #1
avatar+118609 
+4

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

 Feb 14, 2018

0 Online Users