February 23, 2017

Homework Help: math

Posted by chris on Monday, March 23, 2009 at 10:57am.

Four quilters are preparing patches for a quilt. When finished, the quilt will contain 200 patches. The quilters’ contributions thus far are in the table below.

Name Number if patches
Lia 65
Brian 17
Elle 88
len 6

Find the probability that a randomly chosen patch:
1. Will have been sewn by Elle?
2. Will not have been sewn by Lia?
3. Will have been sewn by Brian or Len?

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