Question

There is a bag filled with 5 blue and 6 red marbles.

A marble is taken at random from the bag, the colour is noted and then it is replaced.
Another marble is taken at random.
What is the probability of getting 2 blues?

Answer 1

`(25)/(121)` or ~0.2066

Explanation:

Chance to get a blue is 5/11

After replacement it is still 5/11.

`(5)/(11)* (5)/(11)=(25)/(121)`