Question

Weigh 4.5 ounces, 5.01 ounces, 5.3 ounces 4.75 ounces 4.9 ounces which is the best whole number of estimate of how much all the containers wieigh together

Answer 1

I'd round off all five weights, obtaining {4.5, 5, 5, 5, 5}. The sum of these five weights is 24.5, which we divide by 5 to obtain the estimate:

24.5
------ = 4.9. Round this up to the nearest whole number: 5. This is "the best 5 whole number estimate of the contents of these 5 containers."