Parker wants to find out what the average percentage of kernels that pop in a bag is. In the first bag he makes, 60 kernels pop and the bag has 75 kernels. In the second bag, 42 kernels pop and there are 50 in the bag. In the final bag, 82 kernels pop and the bag has 100 kernels.
In the first bag the proportion that pops is .8 because 60 / 75 = <<60/75=.8>>.8
In the second bag the proportion that pops is .84 because 42 / 50 = <<42/50=.84>>.84
In the third bag the proportion that pops is .82 because 82 / 100 = <<82/100=.82>>.82
The proportions totals 2.46 because .8 + . 84 + .82 = <<.8+.84+.82=2.46>>2.46
The average proportion is .82 because 2.46 / 3 = <<2.46/3=.82>>.82
The average percentage is 82 because .82 x 100 = <<.82*100=82>>82
#### 82