Question Number 151454 by gsk2684 last updated on 21/Aug/21 $${when}\:{a}\:{die}\:{is}\:{rolled}\:\mathrm{42}\:{times}\:{it}\:{is}\:{so} \\ $$$${happened}\:{that}\:{a}\:{face}\:{having}\:{the}\:{digit}\:{i} \\ $$$${times}\:{occured}\:\mathrm{2}{i}\:{times}.\:{then}\:{find}\:{the} \\ $$$${mean}\:{deviation}\:{from}\:{the}\:{mean}\:{of}\:{this} \\ $$$${discrete}\:{frequency}\:{distribution}. \\ $$$${ans}\:{is}\:\frac{\mathrm{80}}{\mathrm{63}} \\ $$$${sol}\:{pls} \\ $$ Commented…
Question Number 85859 by jagoll last updated on 25/Mar/20 $$\:\mathrm{Is}\:\mathrm{the}\:\mathrm{Var}\left(\mathrm{aX}+\mathrm{b}\right)\:=\:\mathrm{a}^{\mathrm{2}} \:\mathrm{Var}\left(\mathrm{X}\right)\:+\:\mathrm{b}? \\ $$ Answered by Joel578 last updated on 25/Mar/20 $${nope} \\ $$$$\mathrm{Assume}\:{a}\:\mathrm{and}\:{b}\:\mathrm{is}\:\mathrm{constant},\:\mathrm{then} \\ $$$$\mathrm{var}\left({b}\right)\:=\:{E}\left[{b}^{\mathrm{2}}…
Question Number 20192 by naziri1920@gmail.com last updated on 23/Aug/17 $$ \\ $$$${t}_{\mathrm{1}} =\mathrm{3},\:{t}_{{n}} =\mathrm{3}{t}_{{n}−\mathrm{1}} +\mathrm{2}\:\:\:\:\:….{n}>\mathrm{1} \\ $$$$ \\ $$$$ \\ $$$$ \\ $$$$ \\ $$$$…
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Question Number 19679 by myintkhaing last updated on 14/Aug/17 Commented by myintkhaing last updated on 14/Aug/17 $$\left(\mathrm{a}\right)\:\mathrm{A}\:\mathrm{will}\:\mathrm{win}\:\mathrm{both}\:\mathrm{races} \\ $$$$\left(\mathrm{b}\right)\:\mathrm{A}\:\mathrm{will}\:\mathrm{win}\:\mathrm{either}\:\mathrm{race} \\ $$$$\left(\mathrm{c}\right)\:\mathrm{A}\:\mathrm{will}\:\mathrm{win}\:\mathrm{only}\:\mathrm{one}\:\mathrm{race} \\ $$ Terms of…
Question Number 85091 by pew_247 last updated on 18/Mar/20 Commented by john santu last updated on 19/Mar/20 $$\left(\mathrm{1}\right)\:\mathrm{n}\left(\mathrm{S}\right)\:=\:\mathrm{C}_{\mathrm{13}} ^{\mathrm{52}} ×\mathrm{C}_{\mathrm{13}} ^{\mathrm{39}} \:×\mathrm{C}_{\mathrm{13}} ^{\mathrm{26}} ×\mathrm{1} \\…
Question Number 85088 by pew_247 last updated on 18/Mar/20 Commented by pew_247 last updated on 18/Mar/20 $${help}\:{please} \\ $$ Terms of Service Privacy Policy Contact:…
Question Number 85068 by pew_247 last updated on 18/Mar/20 Commented by pew_247 last updated on 18/Mar/20 $${help}\:{please} \\ $$ Commented by MJS last updated on…
Question Number 19393 by myintkhaing last updated on 10/Aug/17 $$\mathrm{Three}\:\mathrm{tennis}\:\mathrm{players}\:\mathrm{A},\:\mathrm{B}\:\mathrm{and}\:\mathrm{C}\:\mathrm{play}\:\mathrm{each} \\ $$$$\mathrm{other}\:\mathrm{only}\:\mathrm{once}.\:\mathrm{The}\:\mathrm{probability}\:\mathrm{that}\:\mathrm{A}\:\mathrm{will} \\ $$$$\mathrm{beat}\:\mathrm{B}\:\mathrm{is}\:\frac{\mathrm{3}}{\mathrm{5}},\:\mathrm{that}\:\mathrm{B}\:\mathrm{will}\:\mathrm{beat}\:\mathrm{C}\:\mathrm{is}\:\frac{\mathrm{2}}{\mathrm{3}},\:\mathrm{and}\:\mathrm{that} \\ $$$$\mathrm{A}\:\mathrm{will}\:\mathrm{beat}\:\mathrm{C}\:\mathrm{is}\:\frac{\mathrm{5}}{\mathrm{7}}.\:\mathrm{Find}\:\left(\mathrm{1}\right)\:\mathrm{the}\:\mathrm{probability} \\ $$$$\mathrm{that}\:\mathrm{A}\:\mathrm{will}\:\mathrm{not}\:\mathrm{win}\:\mathrm{both}\:\mathrm{games} \\ $$$$\left(\mathrm{2}\right)\:\mathrm{the}\:\mathrm{probability}\:\mathrm{that}\:\mathrm{A}\:\mathrm{will}\:\mathrm{win}\:\mathrm{not}\:\mathrm{both}\:\mathrm{games}. \\ $$ Answered by allizzwell23…
Question Number 150450 by jlewis last updated on 12/Aug/21 $$\mathrm{show}\:\mathrm{the}?\mathrm{connection}\:\mathrm{between}\:\mathrm{the} \\ $$$$\mathrm{beta}\:\mathrm{distribution}\left(\mathrm{n},\mathrm{p}\right)\:\mathrm{and}\:\mathrm{hypergeometric} \\ $$$$\mathrm{distribution}\left(\mathrm{N},\mathrm{k},\mathrm{n}\right)\mathrm{in}\:\mathrm{a}\:\mathrm{limiting}\:\mathrm{case} \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com