Let X denote the numebr of flaws along an 100m reel of magnetic
tape. If in average there are 25 flaws every 100m of tape find the
probability that a random 200m tape contains more than 30 flaws.
Let X denote the numebr of flaws along an 100m reel of magnetic
tape. If in average there are 25 flaws every 100m of tape find the
probability that a random 200m tape contains more than 30 flaws.