13.箱子里有一个红球,两个黄球,三个白球,若有放回地取三次,则三次都没取到黄球的概率为 ;在三次都没取到黄球的条件下,至少取到一次红球的概率是
独立重复试验 · 历年高考数学真题与解析
本页汇总 高考真题检索 的「独立重复试验」高考数学真题共 2 道,覆盖 2017–2026 年,最常出题型为 解答题;含完整答案与解析。
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2017–2026
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8.(5 分)已知随机变量 $\xi_{\mathrm{i}}$ 满足 $\mathrm{P}\left(\xi_{\mathrm{i}}=1\right)=\mathrm{p}_{\mathrm{i}}, \mathrm{P}\left(\xi_{\mathrm{i}}=0\right)=1-\mathrm{p}_{\mathrm{i}}$ , $\mathrm{i}=1$ ,2.若 $0< \mathrm{p}_{1}<\mathrm{p}_{2}<\frac{1}{2}$ ,则( )
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