The answer is D, there is no bias as Josh used random sampling.
Answer:
Step-by-step explanation:
Hope this helps!
Sod=1*1
to cover =30*14
to cover=420
to cover divided by one piece
=420/1
=420 pieces
Answer:
x = 40
Step-by-step explanation:
Answer:
c
the total number of marbles are 12 and there are 3 colours so you divide 12 by 3