Monday

April 20, 2015

April 20, 2015

Posted by **Jane** on Thursday, April 8, 2010 at 12:44pm.

1.a jar contains 5 white, 15 violet,and 21 blue marbles. a marble is drawn at random. P(violet or white)

answer: 5x15x21= 1575

15x5=75

75/1575= 1/21

2. a number from 10 to 16 is drawn at random. P(a number greater than 14)

answer: 2/7

- math -
**bobpursley**, Thursday, April 8, 2010 at 2:46pmP(violet or white)=(5+15)/(5+15+21)

2. YOu have 7 choices (10, 11, 12, ..16)

of those, 15 and 16 are >14

Pr(greater than 14)=2/7

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