For example, if a jar contains 13 red marbles and 7 green marbles, the
probability that a marble selected from the jar at random will be green
is

show some steps please

Question

For example, if a jar contains 13 red marbles and 7 green marbles, the 
probability that a marble selected from the jar at random will be green 
is

show some steps please

rulnick · Answer

Probability selected marble is green = # green / total # of marbles.
So P(green) = 7 / (7+13)
= 7/20.

rulnick · Answer

Or 0.35 if you prefer decimal.

anonymous · Answer

great ty

anonymous · Answer

total possible outcomes = 13 + 7 = 20
favourable for green = 7

so P(green) = 7/20

rulnick · Answer

You're welcome.  Good luck.  Bye.