Problem
When a national sample of heights of kindergarten children was taken, a student was told that she was in the 70th percentile. Explain what that means. Choose the correct interpretation below. A. She is shorter than 70 percent of all kindergarten children. B. She is taller than 70 percent of all kindergarten children. C. She is taller than 30 percent of all kindergarten children. D. She is taller than 70 kindergarten children.
Solution
Step 1 ：The percentile of a value in a dataset is the percentage of values in the dataset that are less than that value. So, if a student is in the 70th percentile, it means that she is taller than 70 percent of all kindergarten children.
Step 2 ：Final Answer: \(\boxed{\text{B. She is taller than 70 percent of all kindergarten children.}}\)
