Find the probability. A sales representative who visits customers at home nds she sells 0, l, 2, 3, or 4 items according to the following frequencyr distribution. Items sold Frequency \fA driving exam consists of 29 multiple-choice questions. Each of the 29 answers is either right or wrong. Suppose the probability that a student makes fewer than 10 mistakes on the exam is 0.25 and that the probability that a student makes from 10 to 15 (inclusive) mistakes is 0.45. Find the probability that a student makes at most 15 mistakes. A 0.45 B 0.75 0.3 D 0.7