Mathematics

June Donovan

22 September, 19:50

A girl flips a coin six times. If she gets a head, tail, head, tail, and head combination the first five times, what is the probability that she will get a tail the sixth time she flips the coin? A. 0

B. (1/2) (1/2) (1/2) (1/2) (1/2) (1/2)

C. 1/2

D. 1

An expensive laser is claimed to have an accuracy of 98%. Suppose the accuracy of the laser is independent of its price. If 3/4 of the lasers on the market are less than $500, what accuracy can you expect to get from a cheap laser than costs less than $500?

A. 24.5%

B. 73.5%

C. 75%

D. 98%