A grocery store sells 5-lb bags of apples. You purchase four bags over the course of a month and weigh the apples eachtime. You obtain the following measurements:• Week 1 weight: 4.8 lb• Week 2 weight: 5.3 lb• Week 3 weight: 4.9 lb• Week 4 weight: 5.4 lbYou determine that the weight of the 5-lb bag has an uncertainty of ±0.4 lb . What is the percent uncertainty of the bag’sweight?

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Estimate of calculation