Category: Probability and Statistics

Question Number 124282 by bramlexs22 last updated on 02/Dec/20 Answered by liberty last updated on 02/Dec/20 Commented by malwan last updated on 02/Dec/20 $$\frac{$$\left(\begin{array}{c}5\\ 5\end{array}\right)$$}{$$\left(\begin{array}{c}25\\ 5\end{array}\right)$$}\:=\:\frac{\mathrm{1}}{\frac{\mathrm{25}×\mathrm{24}×\mathrm{23}×\mathrm{22}×\mathrm{21}}{\mathrm{5}×\mathrm{4}×\mathrm{3}×\mathrm{2}×\mathrm{1}}}\: \…

Question Number 189662 by MikeH last updated on 19/Mar/23 Terms of Service Privacy Policy Contact: info@tinkutara.com

Question Number 189641 by MikeH last updated on 19/Mar/23 $$\mathrm{A}\mathrm{man}\mathrm{has}\mathrm{equal}\mathrm{chances}\mathrm{of}\mathrm{travelling}\mathrm{by}$$$$\mathrm{air}\left(\mathrm{A}\right),\mathrm{bus}\left(\mathrm{B}\right)\mathrm{and}\mathrm{train}\left(\mathrm{T}\right).\mathrm{the}\mathrm{probability}$$$$\mathrm{that}\mathrm{when}\mathrm{he}\mathrm{travels}\mathrm{by}\mathrm{air},\mathrm{bus}\mathrm{or}\mathrm{train}\mathrm{he}$$$$\mathrm{will}\mathrm{have}\mathrm{an}\mathrm{accident}\mathrm{are}\frac{1}{3},\frac{3}{5}\mathrm{and}\frac{1}{10}.$$$$\mathrm{find}\mathrm{the}\mathrm{probability}\mathrm{that}$$$$\left(\mathrm{a}\right)\mathrm{he}\mathrm{travelled}\mathrm{and}\mathrm{was}\mathrm{involved}\mathrm{in}\mathrm{an}\mathrm{accident}$$$$\left(\mathrm{b}\right)\mathrm{he}\mathrm{was}\mathrm{travelling}\mathrm{by}\mathrm{air}\mathrm{given}\mathrm{that}\mathrm{he}\mathrm{was}$$$$\mathrm{involved}\:\mathrm{in}\:\mathrm{an}\:\mathrm{accident}. \…

Question Number 123771 by benjo_mathlover last updated on 28/Nov/20 Commented by benjo_mathlover last updated on 28/Nov/20 $$let⧫=man,\mathrm{♡}=woman$$$$⧫\mathrm{♡}⧫\mathrm{♡}⧫\mathrm{♡}⧫\mathrm{♡}⧫\mathrm{♡}⧫\mathrm{♡}⧫=$$$$3!\times C_3^6\times 5!\times 42$$$${p}\left({A}\right)=\:\frac{\mathrm{3}!×{C}_{\mathrm{3}}…

Question Number 58051 by Aditya789 last updated on 17/Apr/19 Answered by tanmay last updated on 17/Apr/19 $$samplespace\{HHH,HHT,HTH,HTT,THH$$$$THT,TTH,TTT\}$$$$favouraberesultis\{HT\overline{H},THT\}$$$${so}\:{probablity}=\frac{\mathrm{2}}{\mathrm{8}}=\frac{\mathrm{1}}{\mathrm{4}} \…