4. The number of accidents per week at a hazardous intersection varies with mean 2.2 and standard deviation 1.4. This distribution is discrete and so is certainly not normal. (a) Let X be the mean...

Extracted text: 4. The number of accidents per week at a hazardous intersection varies with mean 2.2 and standard deviation 1.4. This distribution is discrete and so is certainly not normal. (a) Let X be the mean number of accidents per week at the intersection during a year (52weeks). According to the central limit theorem, what is the approximate distribution of X ? (b) What is the approximate probability that there are fewer than 100 accidents at the intersection in a year?