Find the mean of the binomial distribution for which n=80 and p=0.2

16

Step-by-step explanation:

The mean of a binomial distribution is n*p

So 80 * 0.2 = 16

90 seconds

Step-by-step explanation:

To find the time it takes to take a certain amount of steps, divide the given rate by the time.

3/2 = 1.5

This means she takes 1.5 steps every second. Now, we can multiply this rate by 60 to find how far she will go in that time.

1.5 · 60 = 90

Bethany takes 90 steps in 60 seconds.

I hope this helps ^^ Good luck