Champion bowler A certain bowler can bowl a strike 70% of the time. If the bowls are independent, what’s the probability that she a) goes three consecutive frames without a strike?  b) makes her first...

Champion bowler A certain bowler can bowl a strike 70% of the time. If the bowls are independent, what’s the probability that she

a) goes three consecutive frames without a strike?

 b) makes her first strike in the third frame?

c) has at least one strike in the first three frames?

d) bowls a perfect game (12 consecutive strikes)?