We want to compare averages. From the histogram we have we don't know the exact mean, but if we just assume the average in each bin is the midpoint of the bin we can make an estimate.
Supplier A has
mean = ( 22(64) + 27(66) + 26(68) + 15(70) + 10(72) )/(22+27+26+15+10)
mean = 6728/100 = 67.28 grams
Supplier B has mean 66.5
Answer: Choose Supplier A
(work shown above)
He simplified expression C because that is the only one that has only multiplications.
Answer:
I think the answer is C. 1209 cm^3
Step-by-step explanation:
volume of a cylinder= πr^r2xh
radius = 1/2xdiameter
r = 1/2× 9
r = 4.5cm
height. = 19cm
volume of the cylinder = 22/7 x (4.5)^2 x 19
= 1208.73cm^3
= 1209 cm^3 ( to the nearest whole number)
