The scores on a university exam are normally distributed with a mean of 67 and a standard deviation of 13. If the bottom 5% of students will fail the course, what is the lowest mark a student can have and still pass the course?

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way

Amayoral candidate would like to know her residents’ views on a public open space before the mayoral debates. she asks only the people in her office. her co-workers are an example of a census population convenience sample simple random sample

A. the probability that a product is defective is 0.1. what is the probability that there will be 1 or less defective products out of the next 8 produced products b.the expected number of imperfections in the coating nylon for parachutes is 6 per 100 yards. what is the probability of finding 12 or fewer imperfections in 260 yards c.in a lot of 54 products there are 9 defective products. calculate the probability that not more than 1 is defective from a random sample of 17 products.