Twenty-three percent of automobiles are not covered by insurance (CNN, February 23, 2006). On a particular weekend, 35 automobiles are involved in traffic accidents.

• a)What is the probability of 5 automobiles involved in traffic accidents but not covered by insurance?
• b)What is the probability of at least 10 automobiles involved in traffic accidents but not covered by insurance?
• c)What is the probability of at most 11 automobiles involved in traffic accidents but not covered by insurance?
• d)What is the expected number of these automobiles that are not covered by insurance?
• e)What are the variance and standard deviation?