My theory is that that size fits the most bales of boards into standard containers used on container ships, is this true?
Each board has area of (4 x 8) = 32 square feet.Number of boards = (400 / 32) = 12.5 boards
The standard size for house gypsum boards (commonly referred to as drywall or plasterboard) is typically 4 feet by 8 feet (1.22 meters by 2.44 meters). However, they also come in various other sizes, including 4x10 feet and 4x12 feet, to accommodate different building needs. The thickness of standard gypsum boards usually ranges from 1/4 inch to 1/2 inch, with 5/8 inch boards often used for fire-rated applications.
The thickness does not enter into the calculation (400)/(4x32) = 100/32 = 25/8 = 3 and 1/8 No one would sell you 3 and 1/8 boards, hence buy 4 boards
4' x 8' = 32'224' x 32' = 768'2768 / 32 = 24 boards.
4 and 8 thousandths (4.008) in standard form is 4.008 × 100
That would depend on the size of the plywood pieces that you are using. You have not specified that. Assuming the area is square, rectangle ; Based on industry standard sizes (8 x 4 ft imperial) then its 31.25 boards. Calculation 1000 square feet to be covered. One 8 x 4 board is 32 sq ft 1000 / 32 = 31.25 boards If 6 x 3 boards are used (again industry standards imperial) then its 55. 55 boards
It is 8 3/4.
8
30+8+4
4,096
The mean is 12 and each observation is 8 units away from 12.
4,096