Confused by Ken Ham Math 2

Let's say I have a sample size of 1,000 individuals. These individuals can easily be sorted into various groups. So, I ask them a question, say, "Do you understand how to label your values?"This is how many people answered yes:Those who passed Algebra with an A - 34.3Those who failed - 69.7Those who plan to retake Algebra - 28.9Those who will never touch a math text again - 78.3...I decided to do