Relative frequencies

Using relative frequencies: part 2

The use of both and and or is illustrated in the following question.

Question 2

The eye colour and gender of 300 people was recorded.
The results are shown in the table below.

Eye colour Gender	Blue	Brown	Green	Grey
Male	40	50	10	20
Female	80	70	10	20

A person is chosen at random from 300 people.
Find the relative frequency of:
a male and grey eyes
b blue eyes or brown eyes
c females and green eyes
d green eyes or female.

Solution is provided in screencast.

  

Detailed description of video

Using relative frequencies: part 1