Co 5
4
DO NOT WRITE IN THIS AREA
3
2
1
-5
--4
-3
-2
-1 0
2.
3
4
5 x
:-1
-2
-3
-4
-5
DO NOT WRITE IN THIS AREA
(a) Write down the coordinates of point A.
(
(b) On the grid, mark with a cross (X) the point (2, 3)
Label this point B.
(1)
(c) On the grid, draw the line with equation x= -4
(1)​

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.