Question

Hair Color Boys Girls
Black 4 5
Blonde 4 6
Brown 10 8
Red 2 1
The table shows the number of boys and girls that have black, blonde, brown, or red hair color. What portion of the boys have red hair? (round to nearest hundredth)

A) 0.05
B) 0.10
C) 0.11
D) 0.15

Answer 1

ANSWER:

B ) 0.10

The portion of the boys which have red hair, rounded to the nearest hundredth, is:
0.10.

STEP-BY-STEP EXPLANATION:

Let portion of boys which have red hair = x

x = Total no. of boys with red hair / Total no. of boys

x = 2 / ( 4 + 4 + 10 + 2 )

x = 2 / 20

x = 1 / 10

x = 0.10 ( rounded to the nearest hundredth )