Question

A 150-unit apartment complex is infested with rats. The apartment caretaker checked 9 units and found the following number of rats {2, 5, 3, 1, 0, 3, 7, 2, 2}. What is the relative frequency of units with no rats?
A. 0.08
B. 0.11
C. 0.16
D. 0.22

Answer 1

@jhonyy9 I got D for my answer, would you say thats correct?

Answer 2

ew rats

Answer 3

lol.

Answer 4

Would it be 1/9 = 0.11 ? Since there's only one unit out of the 9 without rats. (I havent done this before but I just read about how to calculate it)

Answer 5

I think your correct. All i did was just add up the numbers and round them to the nearest whole number. I was a bit confused with this one, but am sure your right.

Answer 6

it is B: 0.11

Answer 7

Yeah seems that way. I found this online http://www.mathsisfun.com/data/relative-frequency.html maybe that'll help clarify it better

Answer 8

Thanks guys!

Answer 9

no problem

Answer 10

yeah no problem