A glass jar contains 15 red,13 green,4 black,9 orange,11 yellow and 12 blue marbles

Question

A)If I choose one marble at random from the jar,what is the probability that it is:
i) blue?
ii) black?
iii) not black?

Answer 1

blue

Answer 2

ooops! sorry i answered wrong

Answer 3

There are 64 marbles in all, so
P(blue) = 12/64
and so on