60%, she asked 10 students and 6 of them had less than 16. 10/6= .6
Symbolically, write this:
C
7 5. Know how to evaluate that?
C stands for "combination."
I'm probably wrong but I think A.
Sum = 20(1-(1/4)^5) / (1-1/4) = 26.64
I’m not sure sorrry but i hope someone else can help u
