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Category: Probability and Statistics

Calculate-the-interquartile-range-20-26-27-30-34-41-41-64-65-65-72-85-

Question Number 54513 by byaw last updated on 05/Feb/19 $$\mathrm{Calculate}\:\mathrm{the}\:\mathrm{interquartile}\:\mathrm{range}: \\ $$$$\mathrm{20},\mathrm{26},\mathrm{27},\mathrm{30},\mathrm{34},\mathrm{41},\mathrm{41},\mathrm{64},\mathrm{65},\mathrm{65},\mathrm{72},\mathrm{85} \\ $$ Answered by MJS last updated on 05/Feb/19 $$\mathrm{min}=\mathrm{20} \\ $$$$\mathrm{q1}=\frac{\mathrm{27}+\mathrm{30}}{\mathrm{2}}=\mathrm{28}.\mathrm{5} \\…

Question-119893

Question Number 119893 by peter frank last updated on 27/Oct/20 Answered by Ar Brandon last updated on 27/Oct/20 $$\mathrm{P}\left(\mathrm{both}\:\mathrm{black}\right)=\mathrm{P}\left(\mathrm{1}^{\mathrm{st}} \:\mathrm{black}\cap\mathrm{2}^{\mathrm{nd}} \:\mathrm{black}\right) \\ $$$$\:\:\:\:\:\:\:\:\:\:\:\:=\frac{\mathrm{26}}{\mathrm{52}}×\frac{\mathrm{25}}{\mathrm{51}} \\ $$$$\mathrm{P}\left(\mathrm{both}\:\mathrm{queen}\right)=\mathrm{P}\left(\mathrm{1}^{\mathrm{st}}…

Question-119527

Question Number 119527 by joki last updated on 25/Oct/20 Commented by benjo_mathlover last updated on 25/Oct/20 $$\left({a}\right){P}\left({male}/{secondary}\:{education}\right)\:=\:\frac{{P}\left({M}\cap{E}\right)}{{P}\left({E}\right)} \\ $$$$\:=\:\frac{\mathrm{28}}{\mathrm{28}+\mathrm{50}}\:=\:\frac{\mathrm{28}}{\mathrm{78}}\:=\:\frac{\mathrm{14}}{\mathrm{39}}\:. \\ $$ Commented by joki last…

The-test-result-of-the-100-job-applicants-are-given-in-the-table-determinant-score-53-61-72-85-94-F-12-22-25-32-9-If-45-of-applicants-are-accepted-what-

Question Number 117531 by bemath last updated on 12/Oct/20 $$\mathrm{The}\:\mathrm{test}\:\mathrm{result}\:\mathrm{of}\:\mathrm{the}\:\mathrm{100}\:\mathrm{job}\:\mathrm{applicants} \\ $$$$\mathrm{are}\:\mathrm{given}\:\mathrm{in}\:\mathrm{the}\:\mathrm{table} \\ $$$$\begin{vmatrix}{\mathrm{score}\:\:\:\mathrm{53}\:\:\:\mathrm{61}\:\:\:\:\mathrm{72}\:\:\:\:\mathrm{85}\:\:\:\:\mathrm{94}}\\{\:\:\:\:\mathrm{F}\:\:\:\:\:\:\mathrm{12}\:\:\:\mathrm{22}\:\:\:\:\mathrm{25}\:\:\:\:\mathrm{32}\:\:\:\:\:\:\mathrm{9}}\end{vmatrix} \\ $$$$\mathrm{If}\:\mathrm{45\%}\:\mathrm{of}\:\mathrm{applicants}\:\mathrm{are}\:\mathrm{accepted},\:\mathrm{what} \\ $$$$\mathrm{is}\:\mathrm{the}\:\mathrm{score}\:\mathrm{of}\:\mathrm{a}\:\mathrm{person}\:\mathrm{to}\:\mathrm{be}\:\mathrm{accepted}? \\ $$ Commented by TANMAY PANACEA last…