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A bag contains 10 red marbles, 15 yellow marbles, 5 green marbles, and 20 blue marbles. Two marbles are drawn from the bag.

Which expression represents the probability that one of the marbles is red and the other is blue?

A bag contains 10 red marbles, 15 yellow marbles, 5 green marbles, and 20 blue marbles. Two marbles are drawn from the bag. Which expression represents the prob class=

Answer :

we are dealing with combinations here not permuatations because the order of picking does not matter.
so its the produce of  1 from 10 red  * 1 from 20 blue,   divided by   2 combinations  FROM 50

Choice 3 is the correct one.

Answer:

The answer on ED is C

Step-by-step explanation:

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