refer to image What is the probability that the second resis

refer to image

What is the probability that the second resistor is rated at 100 ohm , given that the first resistor is rated at 100 ohm ?

Solution

3. If the first resistor is 100 ohms, then only 11 out of the remaining 19 is 100 ohms.

Thus,

P(second is 100 ohms|first is 100 ohms) = 11/19 or 0.578947368 [ANSWER]