Answer:
4. [tex]45[/tex]
Step-by-step explanation:
The chart has a sample of 200 people and 20 of them walk.
[tex]20 \div 200 = 0.1\\0.1 * 100 = 10[/tex]
This means [tex]10\%[/tex] people walk within the sample of 200 people. To get the number of people that walk in total apply the percentage to the larger population:
[tex]450 * 0.1 = 45[/tex]
This means that approximately 45 people out of 450 walk.
