Scale a Stated Sample Proportion - Practice 2

5 questions0m 0s

Learn the skill

Use the observed fraction to make an estimate for a larger same-sized-unit population. An estimate is not a guaranteed count; how the sample was chosen matters.

Worked example

If 3 of 10 sampled tokens are blue, the same proportion predicts about 30 of 100, not a proven count.

Question 1 A sample has 6 blue tokens out of 10. Using that proportion, estimate how many blue tokens are in 100. Answer

Question 2 A sample has 7 blue tokens out of 10. Using that proportion, estimate how many blue tokens are in 100. Answer

Question 3 A sample has 8 blue tokens out of 10. Using that proportion, estimate how many blue tokens are in 100. Answer

Question 4 A sample has 1 blue tokens out of 10. Using that proportion, estimate how many blue tokens are in 200. Answer

Question 5 A sample has 2 blue tokens out of 10. Using that proportion, estimate how many blue tokens are in 200. Answer