Answer:
see below
Step-by-step explanation:
There are 4 dots in categories 0 and 1; 9 dots in categories 2 and 3; and 2 dots in categories 4 and 5. The histogram with bar lengths 4, 9, and 2 is the appropriate choice.
the perimeter of the square is 12 mm
each side of the square is 3 mm