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These marble questions always confuse me. Can someone help me get started, please? Thank you.

A jar contains 13 marbles, 3 red, 4 white, and 6 bule. Three marbles are drawn without replacement. What is the probability that they are the same color?

2007-03-30 09:55:30 · 3 answers · asked by Anonymous in Science & Mathematics Mathematics

3 answers

P( 3 red ) + P ( 3 white ) + P (3 bule )

P( 4 white ) = positive drawns / total drawns

positive drawns are white drawns ,

first white : 4 ways out of 13
second white : 3 ways out of 12
last white : 2 ways out of 11

netto 4/13 * 3/12 * 2/ 11

for the whites !

the other colors go the same.

2007-03-30 10:02:53 · answer #1 · answered by gjmb1960 7 · 0 0

The inverse functionality is given via reflecting the graph in the line y=x If it would not have any factors in the area you have an interest in, then there will be no inverse functionality

2016-10-01 23:04:36 · answer #2 · answered by emilios 4 · 0 0

google possibility.

2007-03-30 10:13:27 · answer #3 · answered by nirmala 1 · 0 0

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