Chapter 10.6, Problem 2GP

To determine

To Complete the two-way frequency table.

Explanation of Solution

Given information:

Total birds are 42.

Total male birds are 18.

Plain wings female birds are 75% of total female birds.

50% of male birds had plain wings.

Complete two way frequency table:

Calculation:

Total birds=42

Total male birds=18

As, 50% of males had plain wings

then, the plain wings male birds=50% of 18

  

On calculating,

The plain wings male birds are 9.

Total birds=42

The plain wings male birds=9

Red-banded wings male birds=18-the plain wings male birds

  =18-9

On solving,

Red-banded wings male birds=9

Total birds=42

Total male birds=18

Total female birds=total birds-total male birds

  =42-18

Total female birds=24

If 75% female birds had plain wings

Then, the plain wings female birds=75% of 24

  

On solving,

The plain wings female birds=18

Then, the red-banded wings female birds=24-Plain wings female birds

  =24-18

On solving,

the red-banded wings female birds=6

Completed frequency table is given below: