Which of the following best describes what the "95% confidence" means in a 95% confidence interval for mu of (10, 20)?

a) There is a 95% probablity that mu is between 10 and 20

b) in repeated sampling, mu will fall between 10 and 20 about 95% of the time.

c) In repeated sampling, about 95% of the observations will fall between 10 and 20.

d) In repeating sampling, about 95% of the observations will fall within the confidence interval.

e) In repeated sampling, the confidence intervals will contain mu about 95% of the time.