John buys two fireworks. Draw the tree diagram to find the probability that both of his fireworks light.

Question

John buys two fireworks. Draw the tree

diagram to find the probability that both

of his fireworks light.

Answer 1

Let's say the two fireworks are labeled F1 and F2 and the probability that one lights is P. 

 

There's 4 possible outcomes:

 

F1 lights, F2 doesn't

F2 doesn't, F1 lights

Both F1, F2 light

Neither F1, F2 lights

 

Here's a sketch of that probability tree:

 

https://s24.postimg.org/553v92in9/nygrb.png