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Differential Calculus (id: e0f8aece4)

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admin 发表于 2024-7-30 22:01:11 | 显示全部楼层 |阅读模式
本题目来源于试卷: Differential Calculus,类别为 IB数学

[填空题]
A biased coin is tossed 10 tz1sw xt5ua70b7r9r ox imes. Let X be the number of tailsb4en2p8xegu k7s/g f9 obtained.
The probability of obtaining a tail in any one throw is p>0 .
1. Find, in terms of p , an expression for $\mathrm{P}(X=8)$ .   
2. a. Determine the value of p for which $\mathrm{P}(X=8)$ is a maximum.   
b. For this value of p , determine the expected number of tails.   




参考答案:
空格1: 45*(p^8-2*p^9+p^10)空格2: 4/5空格3: 8


本题详细解析:

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