Question

These marbles are placed in a bag and twoof them are randomly drawn.What is the probability of drawing two pinkmarbles if the first one is NOT placed backinto the bag before the second draw?Give your answer as a rational number, reduced tosimplest terms.Hint: Multiply the probability of the 1st Event by theprobability of the 2nd Event to get your answer.

Answer 1

Given data:

The total numbers of marbles are n=10.

The expression for the probability of drawing 2 pink marbles one by one without replacement is,

`\begin{gathered} P(2p)=(3)/(10)*(2)/(9) \\ =(1)/(15) \end{gathered}`

Thus, the probability of drawing 2 pink marbles one by one without replacement is 1/15.