d4.4 please see attached picture for the questions for help with homework (note: these are not test questions)

{SELF - .22 The quality control manager of Marityn's Cookies is inspecting a batch of chocolate-chip cookies that has just been baked. If the production process is in conhol, the mean number of chocolate-chip parts per cookie is 6.0. What is the probability that in any particldar cookie being inspected a. fewerthan five chocolate-chip parts will be found? b. exactly ve chocolate-chip parts will be bund? c. live or more chocolate-chip parts will be found? d. either tour or five chocolate-chip parts will be found? 'SELF '/ ' i ' ' 8.8 Toby's Trucking Company determined that the distance traveled per truck per year is normally distributed. with a mean of5lJ thousand miles and a standard deviation of 12 thousand miles. a. What proportion of trucks can be expected to travel between 34 and 50 thousand miles in a year? b. What percentage oftrucks can be expected to travel either less than 30 or more than 60 thousand miles in a year? c. How many miles wilt be traveled by at least eighty percent of the trucks? d. What are your answers to (a) through (c) ifthe standard deviation is to thousand miles? v/SELF ' " i 6.24 The time between anivals of customers at a bank during the noon-to-'l PM. how has a uniform distribution between Dto120 seconds. What isthe probability thatthetime bebueenthe arrival oftwo customers will be a. less than 20 seconds? b. between 10 and 30 seconds? o. more than 35 seconds? d. What are the mean and standard deviation of the time between arrivals