Category: Probability and Statistics

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)…

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Question Number 186721 by Mingma last updated on 09/Feb/23 Commented by Mingma last updated on 09/Feb/23 How far is the arc from A to B? The side of the square is 2 in length Answered by HeferH last updated on 09/Feb/23 Commented…

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…

Question Number 186547 by ali009 last updated on 05/Feb/23 $${p}\left({a}\:{or}\:{b}\right)=\mathrm{0}.\mathrm{7}\:{and}\:{p}\left({a}\right)=\mathrm{0}.\mathrm{4} \\ $$$${find}\:{p}\left({b}\right)\:{if}\:{a}\:{and}\:{b}\:{are}\:{independent} \\ $$ Answered by som(math1967) last updated on 06/Feb/23 $${p}\left({aorb}\right)={p}\left({a}\right)+{p}\left({b}\right)−{p}\left({a}\:\:{and}\:{b}\right) \\ $$$$.\mathrm{7}=.\mathrm{4}+{p}\left({b}\right)−.\mathrm{4}{p}\left({b}\right) \\…