Mr desmond is a loan officer at XY bank of Nigeria plc. Based on his experience he estimates that the probability is 0.03 that an applicant will not be able to repay his or her installation loan. last month, he made 40 loans. a) what is the probability that 3 loans will be defaulted?
b) what is the probability that at least 3 loans will be defaulted?

Asimple random sample of size nequals14 is drawn from a population that is normally distributed. the sample mean is found to be x overbar equals 70 and the sample standard deviation is found to be sequals13. construct a 90% confidence interval about the population mean

The sat and act tests use very different grading scales. the sat math scores follow a normal distribution with mean 518 and standard deviation of 118. the act math scores follow a normal distribution with mean 20.7 and standard deviation of 5. suppose regan scores a 754 on the math portion of the sat. how much would her sister veronica need to score on the math portion of the act to meet or beat regan's score?

Find the solution of each of the following.