MATH SOLVE

2 months ago

Q:
# Heather and Isabelle play a two-person game which is won by the first person to accumulate 10 points. At each turn Heather gains a point with probability of $\frac{2}{3}$ . If she doesn't get a point then Isabelle gets a point. Isabelle is now ahead 9 to 6. What is the probability that Isabelle will win? Express your answer as a common fraction.

Accepted Solution

A:

Heather winning, so the probability that Isabelle will win is : 1 whole right ?Β

16/81 = 65 over 81

16/81 = 65 over 81