On Average,Caryl's School Bus Arrives on Time,although Sometimes It Is

Multiple Choice

On average,Caryl's school bus arrives on time,although sometimes it is a bit early or late.If the arrival times are distributed on a normal curve,which of the following statistics would enable Caryl to estimate the probability that her bus will arrive within 5 minutes of its scheduled arrival time on any given day?

A) median
B) mean
C) standard deviation
D) correlation