1. Jane has 2 tennis serves, a hard serve and a softserve. Her hard serve is in
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Question
1. Jane has 2 tennis serves, a hard serve and a softserve. Her hard serve is in (a good serve) 50% of the time and hersoft serve is in good 75% of the time. If her hard serve isin she wins 75% of her points .If her soft serve is in shewins 50% of her points. Since she is allowed to reserve one time ifher first serve is out what should her serving strategy be? Thatis, should she serve hard followed by soft; both hard; softfollowed by hard; or both soft?
2. A student observes the following spinner and claimsthat the color red has the highest probability of appearing sincethere are two red areas on the spinner. What is your response? Thespinner shows ¼ red then ½ blue and ¼ red thisis top of spinner the bottom half is all green with the arrowpointing straight up and down.
Explanation / Answer
The student is wrong the probability of red is 1/4, theprobability of blue is 1/4 and the probability of green is 1/2, sogreen has hte highest probability.
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