Question

In proof testing of circuit boards, the probability that any particular diode will fail is 0.01. Suppose a circuit board contains 200 diodes.
(a) How many diodes would you expect to fail?
2 diodes

Answer 1

Answer: 2 diodes

Explanation:

Given : In proof testing of circuit boards, the probability that any particular diode will fail is 0.01.

The number of diodes contained by circuit board = 200

Then , the expected number of diodes to fail is given by :-

$0.01\times200=2$

Therefore, there are 2 diodes that we will expect to fail.