4A) Describe the two main classifications of measurement error. 4 B) A grocery store sells 5-lb bags of apples. You purchase four bags over the course of a month and weigh the apples each time. You obtain the following measurements: - Week 1 weight: 4.8lb - Week 2 weight: 5.3lb - Week 3 weight: 4.9lb - Week 4 weight: 5.4lb You determine that the weight of the 5 -lb bag has an uncertainty of 0.4lb. What is the percent uncertainty of the bag's weight? 4 C) What factors can reduce accuracy or precision and increase the uncertainty of your measurement results