Here’s a counterexample: consider

Select the subsets in the following manner:

It's accurate that
and
and that
, but 
Answer:
12 pencils per package.
Step-by-step explanation:
Details provided:
Ethan purchased 4 packages of pencils.
Number of Packages = 4
Number of pencils shared with friend = 8 pencils
Pencils remaining = 40 pencils
∴Total Number of Pencils = Pencils given to friend + Pencils remaining = 
Total Pencils in each package = 
Answer:
E 240
Step-by-step explanation:
Mean of the geometric distribution = (1- p) / p
16 = (1 - p) / p
16p = 1 - p; 17p = 1; thus, p = 1/17 = 0.058
Standard Deviation = (1 - p) / p^2
= (1 - 0.058) / (0.058)^2
0.942 / 0.003364
= 280, which is closest to 240