Simon has decided to improve the quality of the products he sells. Now only one out of five CDs selected from the bins is defective (i. e., the probability that a diskette is bad is only 0.2). If three CDs are chosen at random, what is the probability :
(a)that all three CDs are good?
(b)that all three CDs are bad?
(c)that [exactly] one of the three CDs is bad?
(d)that there are more good CDs than bad ones?

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,

5

step-by-step explanation:

its line 2 i just added the rest or else it wouldn't let me answer