SOLUTION: Two light bulbs get mixed up with seven good ones. If you take two of the bulbs, what is the probability that both are bad?
Algebra.Com
Question 706468: Two light bulbs get mixed up with seven good ones. If you take two of the bulbs, what is the probability that both are bad?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Two bad light bulbs get mixed up with seven good ones. If you take two of the bulbs, what is the probability that both are bad?
----
# of ways to "succeed": 2C2 = 1
----
# of possible pairs: 9C2 = 36
----
P(select 2 bad) = 1/36
============================
cheers,
Stan H.
RELATED QUESTIONS
two bad light bulbs get mixed up with seven good ones.if you take two of the bulbs, what... (answered by Alex.33)
a box contain 50 light bulbs, of which 4 are detective. you purchase two bulbs from this... (answered by mathmate)
Find the indicated probability.
A bin contains 77 light bulbs of which 12 are... (answered by edjones)
A bin contains 78 light bulbs of which 4 are defective. If 5 light bulbs are randomly... (answered by Boreal)
In a batch of 10 light bulbs, two are known to be defective. If four bulbs are drawn at... (answered by scott8148)
A box contains 10 light bulbs, two of which are defective. Three bulbs are selected from... (answered by stanbon)
A bin contains 78 light bulbs of which 9 are defective. If 3 light bulbs are randomly... (answered by ewatrrr)
Suppose that the probability of producing a defective light bulb is 0.0004. Ten light... (answered by stanbon)
I have to find two light bulbs from a collection of 12, all but 3 of which are working.... (answered by ewatrrr)