Wiki User
∙ 7y ago738
Wiki User
∙ 7y ago155
80 75 + 70 + 80 = 225 80 + 85 + 90 = 255 225 + 255 = 480 six numbers so 480 / 6 = 80
73.75
86 is the mean of 85, 91, 76, 85, and 93.
65, 70, 75, 80, 85.
Equation: 90 + 85+ 80+76 = 331
82.
325
70, 72, 74, 75, 76, 77, 78, 80, 81, 82, 84, 85 (including 70 and 85)
The variance of 80 85 72 76 95 = 79.3
155
The average is all the numbers added together and then divided by the # of numbers.(80+85+90+88+86+83+89+70)/8=671/8=83.875Order of operations has the brackets first and then the division.
80 75 + 70 + 80 = 225 80 + 85 + 90 = 255 225 + 255 = 480 six numbers so 480 / 6 = 80
Why don't u spend your time putting it in a calculator instead of typing it in here? the answer is : 76+85=161
The composite numbers are: 72, 74, 75, 76, 77, 78, 80, 81, 82, 84, 85, 86 ,87, 88
73.75
160