A study found that 9% of dog owners brush their dog’s teeth. Of 578 dog owners, about how many would be expected to brush their dog’s teeth? Explain.
1 point
50; 9% ≈ 10% and 578 should be rounded down to 500; 10% of 500 = 50
60; 9% ≈ 10% and 578 ≈ 600; 10% of 600 = 60
70; 9% ≈ 10% and 578 ≈ 700; 10% of 700 = 70
100; 9% ≈ 10% and 578 should be rounded up to 1,000; 10% of 1,000 = 100