Answer to Question #194646 in Statistics and Probability for Savannah Akers

Question

There are 5 blue marbles and 7 orange marbles in a jar. Misha draws one blue marble and sets it aside. What is the probability that Misha will randomly draw an orange marble from the remaining marbles in the jar?

Answer 1

Total number of marble$=5+7=12$

Since one blue ball is drawn. So remaining ball in jar=$11$

Probability that Misha draw orange ball after $=\dfrac{7}{11}=0.636$