Question

A bag contains marbles: 4 are green, 2 are red, and 4 are blue. Goran chooses a marble at random, and without putting it back, chooses another one at random. What is the probability that the first marble is blue and the second is green? Write your answer as a fraction in simplest form.
Plz help please help me!!!!!!!!!!!!!!!!!!!!!

Answer 1

Answer:

8/45

Step-by-step explanation:

Step one:

Given

sample space

4 are green,

2 are red, and

4 are blue.

Sample size= 4+2+4= 10

Step two:

Since the event of choosing marbles is done without replacement

The first choice is

Pr(blue)= 4/10= 2/5

The second choice= 4/9

hence the probability is

= 2/5*4/9

=8/45