Final answer:
To find the mean of the length of the fabric, add up all the lengths and divide by the number of pieces.
Step-by-step explanation:
To find the mean of the length of the fabric, you need to add up all the lengths and divide by the number of pieces.
In this case, Suzy has 3 pieces of fabric with lengths of 4 feet, 4 feet, and 4 feet.
To find the mean, add up the lengths: 4 + 4 + 4 = 12 feet.
Then, divide the sum by the number of pieces: 12 feet ÷ 3 pieces = 4 feet.