Question

A machine assembled 600 boxes. An inspector notices that 594 of the boxes have no defects. Part A: What is the experimental probability that a box chosen at random will have no defects? Part B: Is this even impossible, unlikely, as likely as not or certain to occur? Part C: The machine assembles 800 boxes. Predict the number of boxes that will have no defects.

Answer 1

A) experimental probability that the box has no defects = (# of boxes w/ no defects)/(total # of boxes)

B) now, to determine whether this event is certain/likely/unlikely, etc. consider how close the value is to 0 or 1

C) from part A, you determined the probability of a single box having no defects. you can simply multiply this by 800 boxes to predict how many boxes will have defects. you may need to round up or down to the nearest box.