Martha holds a ball in her left hand.

Every second she has a 90% probability of moving the ball to the opposite hand that it is in.

What is the probability that the ball will be in her right hand after 7 seconds?

Give your answer to 3 decimal places.

So, for example, after one second she has a 90% chance of the ball being in her right hand. So, in this case, you would submit 0.9 as your answer.

**Image credit:** http://www.gettyimages.com/

×

Problem Loading...

Note Loading...

Set Loading...