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Question Number 119527 by joki last updated on 25/Oct/20

Commented by benjo_mathlover last updated on 25/Oct/20

(a)P(male/secondary education) = ((P(M∩E))/(P(E)))   = ((28)/(28+50)) = ((28)/(78)) = ((14)/(39)) .

$$\left({a}\right){P}\left({male}/{secondary}\:{education}\right)\:=\:\frac{{P}\left({M}\cap{E}\right)}{{P}\left({E}\right)} \\ $$$$\:=\:\frac{\mathrm{28}}{\mathrm{28}+\mathrm{50}}\:=\:\frac{\mathrm{28}}{\mathrm{78}}\:=\:\frac{\mathrm{14}}{\mathrm{39}}\:. \\ $$

Commented by joki last updated on 25/Oct/20

b?

$${b}? \\ $$

Answered by benjo_mathlover last updated on 25/Oct/20

(b)P(A/B) = ((P(A∩B))/(P(B)))= ((45+50)/(45+50+17))  A : does not have college degree  B : female

$$\left({b}\right){P}\left({A}/{B}\right)\:=\:\frac{{P}\left({A}\cap{B}\right)}{{P}\left({B}\right)}=\:\frac{\mathrm{45}+\mathrm{50}}{\mathrm{45}+\mathrm{50}+\mathrm{17}} \\ $$$${A}\::\:{does}\:{not}\:{have}\:{college}\:{degree} \\ $$$${B}\::\:{female} \\ $$

Commented by joki last updated on 25/Oct/20

number 2.98 sir,i dont understand. thanks sir

$${number}\:\mathrm{2}.\mathrm{98}\:{sir},{i}\:{dont}\:{understand}.\:{thanks}\:{sir} \\ $$

Answered by benjo_mathlover last updated on 25/Oct/20

P(W) = P(A∩B∩C∩D)+P(A∩B∩C^c ∩D)         + P(A∩B^c ∩C∩D)

$${P}\left({W}\right)\:=\:{P}\left({A}\cap{B}\cap{C}\cap{D}\right)+{P}\left({A}\cap{B}\cap{C}^{{c}} \cap{D}\right) \\ $$$$\:\:\:\:\:\:\:+\:{P}\left({A}\cap{B}^{{c}} \cap{C}\cap{D}\right) \\ $$

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