a jar has 100 marbles .

Mathematics
Tutor: None Selected Time limit: 1 Day

40 red, 20 blue, 25 white, 15 yellow. assuming you DONOTreplace marbles
a. what is the probabilty the first marbles is yellow
b. if the first was yellow whats the probabilty the second is yellow

c. if first 2 are yellow whats the probabilty 3rd is red

Nov 16th, 2014

a. P(first marble yellow) =15/100= 0.15

b. P(second yellow| first yellow) = 14/99=0.1414

c. P(red\First two yellows) =40/98 =0.4081


Nov 16th, 2014

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