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โจทย์ ปรนัย
P(AUB^c)-(1-P(AUB))=0.6
Probability
-.50 -.25 +.25 เต็ม 0 -35% +30% +35%
P(E)+P(E^c intersects F^c)=5/6
10%+40%=50%
Probability and set
5/25=1/5
Probability Venn diagram
Factorial formula
Probability Combination
Combination formula
When x is an even number, the product will be an even number
x/2x * x-1/2x-1 * x-2/2x-2=
4/5 x 4 x 3=4/60=1/15
1/5*100