What is the greatest place value of a decimal? In any number, whether it's a decimal fraction or a whole integer, the non-zero digit farthest to the left is the one with the greatest place value. In a decimal fraction, this digit is the first non-zero one to the right of the decimal, and in a whole integer, it's the first digit in the number series.23
She should randomly select campers period, because she wants to estimate the percentage of "campers that ride once a week" and not for example what percentage of campers who ride that ride once a week...
