A bag contains 20 checkers --10 red and 10 black. Find the probability of selecting 2 black checkers when they are chosen at random without replacement. Determine whether the event is dependent or independent.

Question

kropot72 · Answer

The probability of selecting a black checker on the first choice is 10/20.
Having selected a black checker on the first choice, there are 9 black checkers remaining in a total of 19 checkers. So the probability of selecting a black checker on the second choice is 9/19.
The probability of selecting 2 black checkers is the product of the above two values of probability.

anonymous · Answer

so what would the answer be?

kropot72 · Answer

$$P(2\ black\ checkers)=\frac{10}{20}\times\frac{9}{19}=you\ can\ calculate$$

anonymous · Answer

i got 9/38 but i am confused on if it would be dependent or independent

anonymous · Answer

anyone?

anonymous · Answer

it is dependent, because the probability the second one is black depends on whether or not the first one was black

anonymous · Answer

i am guessing of course
this line 
 Determine whether the event is dependent or independent. 
makes no sense at all
one event is not "dependent" or "independent"
two events are, it is a comparison

anonymous · Answer

either it is a typo, or the person who wrote the question is confused about probability

anonymous · Answer

are you pretty positive in your guess?

anonymous · Answer

i think its asking if the answer is independent or dependent