Alice spins the spinner 2 times. what is the probability that the spinner stops on a and then b, or on b and then a?

The probability of a then b is 1/2^2=1/4

The probability of b then a is 1/2^2=1/4

Then the probability of a then b OR b then a is 2*(1/4)=1/2

Well in order to lose a pound you would have to burn 1,500 calories. the more calories you burn the more weight you lose. in order to lose 2 pounds you would have to run 4 hours and 28 minutes.