The fact that the sampling distribution of the sample mean can be approximated by a normal probability distribution whenever the sample size is large is based on the _____.
a. central limit theorem
b. fact that there are tables of areas for the normal distribution
c. assumption that the population has a normal distribution
d. normal probability theorem
Question 2
Shoppers enter Hamilton Place Mall at an average of 120 per hour.
a. Define the random variable in words for this experiment.
b. What is the probability that exactly 5 shoppers will enter the mall between noon and 1:00 P.M.?
c. What is the probability that exactly 5 shoppers will enter the mall between noon and 12:05 P.M.?
d. What is the probability that at least 35 shoppers will enter the mall between 5:00 and 5:10 P.M.?
Refraction; A, normal eye; B, myopia; C, hyperopia.
William Morris, Page from a specimen book with sample proof letters, Kelmscott Press.
Sample of Enzymes
Distribution and Forms of Precipitation: Rain
A sampling of the modified and unusual bases found in tRNAs
Two normal frequency distributions with the same mean but different amounts of variation