What is the mean of the following data set?
82, 100, 92, 66, 72, 96, 70, 88.

83.25

Step-by-step explanation:

add all the numbers and divide by 8. 666/8 = 83.25

83.25

Step-by-step explanation:

Mean = sum of all terms / number of terms

82+100+92+66+72+96+70+88 = 666

666 / 8 = 83.25

212cm

Step-by-step explanation:

area of the square = 28*28 = 784 cm^2

therefore, width of the rectangle = 784/98 = 8cm

therefore, the perimeter of the rectangle

= (8+98)*2 = 212 cm