The following table shows how a sample of 100 students are distributed in terms of hair and eye color (natural color, not dyed or tinted).   Light Hair Dark Hair Light Eyes 25 10 Dark Eyes 15 50 Your friend says, "Hair color and eye color are independent.  Just because you have dark hair doesn't automatically mean you have dark eyes."  Your friend is wrong, they are not independent.  Help explain it to them.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 9CYU
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1.  The following table shows how a sample of 100 students are distributed in terms of hair and eye color (natural color, not dyed or tinted).

  Light Hair Dark Hair
Light Eyes 25 10
Dark Eyes 15 50

Your friend says, "Hair color and eye color are independent.  Just because you have dark hair doesn't automatically mean you have dark eyes."  Your friend is wrong, they are not independent.  Help explain it to them.

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