Answer:
An estimated 20 environmental scientists favor recycling.
Explanation:
Assuming this sample set of 20 environmental scientists in our state are a proportionally accurate representation of all 200 scientists, we can solve for the total number of scientists who prefer recycling to the other waste disposal methods by representing them in a ratio:
prefer recycling : total scientists
2 : 20
Looking at this ratio, we can see that multiplying the right side (20) by 10 will give us 200 scientists, so if we multiply the entire ratio by that amount, the left side will be the number of scientists who prefer recycling proportionate to the 200 scientists, which will be the total because that is how many scientists are in the state.
prefer recycling : total scientists
2 : 20
× 10 × 10
20 : 200
So, an estimated 20 environmental scientists favor recycling.