It is known that 10% of all the items produced by a particular manufacturing process are defective.
Question:
It is known that 10% of all the items produced by a particular manufacturing process are defective. From the very large output of a single day, 900 items were selected at random. Complete parts (a) through (d) below.
a. What is the probability that at least 84 of the selected items are defective?
P(X84)=
(Round to four decimal places as needed.)
b. What is the probability that between 90 and 100 of the selected items are defective?
P(90X100)=
(Round to four decimal places as needed.)
c. What is the probability that between 72 and 105 of the selected items are defective?
P(72X105)=
(Round to four decimal places as needed.)
d. Without doing the calculations, state which of the ranges of defectives shown below has the highest probability.
9091 | 9697 | 8788 | 9394 | 8687 |
Which range below has the highest probability?
A.
9091
B.
9697
C.
8687
D.
8788
E.
9394