13. 14. 15. 16. lb] 1Il'lihat is the probability that the file will transfer at a speed of less than 58 kilobits per second ? In an accelerator center, an experiment needs a 1.41 cm thiclt aluminum cylinder. Suppose that the thickness of a cylinder has a normal distribution with a mean 1.41 cm and a standard deviation of D'l cm. What is the probability that a thickness of a cylinder is greater than 1.42 cm ? The average time for a mail carrier to cover his route is 380 minutes and the standard deviation is 16 minutes. If one of these trips is selected at random+ nd the probability that the carrier will have the following route time. Assume the variable is normally distributed. {a} At least 350 minutes. lb] At most 395 minutes. An electronic office product contains EDGE) electronic components. Assume that the probability that each component operated without failure during the useful life of the product is 0.999: and assume that the components fail independently. Approximate the probability that it) or more of die original EDGE] components fail during the useful life of product. The reliability of an electrical fuse is the probability that a fuse, chosen at random from production, will function under its designed conditions. A random sample of mm fuses was tested and x = 2? defectives were observed. Calculate the approximate probability of observing 2? or more defectives, assuming that the fuse reliability is