[問題] 契比雪夫
題目為
What does Chebyshev's theorem k=6(six standard deviation), for instance,
tell us about the number of heads we may get in 400 flips of a balanced coin?
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我的解法
P(|x-u|≦6σ)≧35/36
Heads of mean: 400 x 1/2 = 200
Number of heads: [200-200 x 35/36, 200+200 x 35/36] = [5.55, 394.5]
找不到信賴區間套用
不知這樣對不對
感謝
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