Suppose 70% of all drivers in a state regularly wear a seat belt. a random sample of 500 drivers are selected. what is the probability that fewer than 325 of those in the sample regularly wear a seat belt? solve this both exactly, via application of the binomial distribution, and approximately via application of the normal distribution: bin( n, p ) ≈ n ( np, np

Juanita wade's new car has an msrp of $28,902.11 including title and processing fees. the premier package which includes surround sound and dvd player costs three times the amount of the in-style package which includes leather seats and select wheels. the total cost of her new car was $34,290.08 which included the 6.5% sales tax. find the cost of the premier package to the nearest cent.