[問題] 作業問題
In the game of baseball, every time a player bats, he is either successful
(gets on base) or he fails (doesn't get on base). (This is all you need to
know about baseball for this problem.!) His on-base percentage, usually
express as a decimal, is the percentage of times he is successful. Let's
consider a player who is theoretically a 0.375 on-base batter. Specifically,
assume that each time he bats, he is successful with probability 0.375 and
unsuccessful with probability 0.625. Also, assume that he bats 600 times in a
season. What can you say about his on-base percentage, (# of successes)/600,
for the season? (Hint: Each on-base percentage is equivalent to a number of
successes. For example, 0.380 is equivalent to 228 successes because
0.380*600 = 228)
a. What is the probability that his on-base percentage will be less than
0.360?
b. What is the probability that his on-base percentage will be greater than
0.370?
c. What is the probability that his on-base percentage will be less than or
equal to 0.400?
題目已說該打擊手的打擊率0.375
但是問題又問關於0.360、0.370、0.400的機率
不太了解問題在說什麼
不知道有沒有人會解這個問題
多謝
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 203.188.73.140