Question

Which of the following is the missing value?The eye color for students in a statistics class wasrecorded. The relative frequencies for each color arelisted in the table below.O 0.270 0.30Blue??Brown0.33Green0.20Hazel0.17Gray0.030 0.370 0.50

Answer 1

We have the following:

Blue: ??

Brown: 0.33

Green: 0.2

Hazel: 0.17

Gray: 0.03

Since this numbers represent relative frequencies, they all must add up to 1. Let x be the value of blue. Then we have the following equation

$x\text{ + 0.33 + 0.2 + 0.17 +0.03 = 1 = x+0.73}$

Then, if we subtract 0.73 on both sides, we get

$x\text{ = 1-0.73 = 0.27}$

So the relative frequency of Blue is 0.27.