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Category: Probability and Statistics

Question-55736

Question Number 55736 by byaw last updated on 03/Mar/19 Answered by tanmay.chaudhury50@gmail.com last updated on 03/Mar/19 $${p}\left({under}\:{wieight}\right)=\frac{\mathrm{1}}{\mathrm{20}}\rightarrow{p}\left({u}.{w}\right)=\frac{\mathrm{1}}{\mathrm{20}}\rightarrow\boldsymbol{{a}} \\ $$$${p}\left({actual}\:{weight}\right)=\frac{\mathrm{19}}{\mathrm{20}}\rightarrow{p}\left({a}.{w}\right)=\frac{\mathrm{19}}{\mathrm{20}}\rightarrow{b} \\ $$$${a}+{b}=\mathrm{1} \\ $$$$\left({b}+{a}\right)^{\mathrm{72}} ={b}^{\mathrm{72}} +\mathrm{72}{c}_{\mathrm{1}}…

Question-55735

Question Number 55735 by byaw last updated on 03/Mar/19 Answered by tanmay.chaudhury50@gmail.com last updated on 03/Mar/19 $$\left.{a}\right){p}\left({v}\right)=\frac{\mathrm{4}}{\mathrm{1000}} \\ $$$$\left.{b}\right){p}\left({h}.{r}\right)=\frac{\mathrm{5}}{\mathrm{1000}} \\ $$$$\left.{c}\right)\:{or}\:{means}\:{uninon}\:\:{of}\:{set} \\ $$$${AUB}={A}+{B}−{A}\cap{B} \\ $$$${p}\left({v}\cup{h}.{r}\right)={p}\left({v}\right)+{p}\left({h}.{r}\right)−{p}\left({v}\cap{h}.{r}\right)…

Question-55539

Question Number 55539 by mr W last updated on 26/Feb/19 Commented by MJS last updated on 27/Feb/19 $$\mathrm{what}\:\mathrm{am}\:\mathrm{I}\:\mathrm{missing}?\:\mathrm{from}\:\mathrm{any}\:\mathrm{point}\:{A}\:\mathrm{we}\:\mathrm{have} \\ $$$$\pm\mathrm{45}°\:\mathrm{range}\:=\mathrm{90}°\:\mathrm{for}\:{B}\:\Rightarrow\:\mathrm{the}\:\mathrm{probability}\:\mathrm{should} \\ $$$$\mathrm{be}\:\mathrm{25\%} \\ $$ Commented…