<span>a) This is the sum of the probabilities of winning in 1, 2 or 3 boxes.
0.02 + (0.98*0.02) + (0.98*0.98*0.02) = 0.0588
b) Exactly three boxes requires the first two to lose.
(0.98*0.98*0.02) = 0.0192
c) This is the complement of answer for a).
1-.0588 = .9412</span>
Explanation is in a file

There are 145 total pieces . you must first convert 20% to a decimal by placing a decimal point two places from the right. 20% = .20
then you mulitiply 145 x .20 = 29
So, Cathy owns 29 pieces of yellow clothing.
15 feet martins family work for with the dodo code for a mask is a horrible thing to ware a little kid in a sweat room or the room with the kids and then they have a white black brown brown green green orange brown orange green green orange orange brown orange orange orange
12+2+8+6+57=85
85/5= 17
mean=17