Question

Two-way frequency tables

Hair Color
Boys 4
Girls 5
Black

Blonde
Boys 4
Girls 6
Brown
Boys 10
Girls 8
Red
Boys 2
Girls 1

The table shows the number of boys and girls that have black, blonde, brown, or red hair color.

What is the probability that a student has brown hair? (round to nearest hundredth)

A)
0.42


B)
0.45


C)
0.58


D)
0.82

Answer 1

0.45

Explanation:

There are 18 brown-haired students, out of 40 students.

18/40

= 0.45

Answer 2

there are 18 brown haired students out of 40 students 18/40=0.45
0.45