A bag contains 6 red blocks, 4 green blocks and 2 yellow blocks.
Three blocks are taken from the bag, at random, without replacement.
Write down the probability that the three blocks will not be the same colour
Answers
Answered by
3
Step-by-step explanation:
bag has 6red, 4 green, 2 yellow =total 12blocks
3 blocks are taken
no. of ways rgy, ryg, gyr, gry, yrg , ygr
its probability
p(E) = p(rgy)+p(ryg)+p(gyr)+p(gry)+p(yrg)+p(ygr)
probability of picking without replacing
p(E) = 6/12×4/11×2/10 x 6 = 2/11×1/5×6=12/55
Answered by
15
Answer:
1176/1320 simplified to 49/55- 3 blocks- huge tree diagram
Step-by-step explanation:
Similar questions