Question 1
Select the sample most representative of the population of interest.
A local TV station wanted to report average gasoline prices in the early summer of 2000 in Illinois.
◦ Prices reported by the first 30 callers to respond to a request for the last price paid for gasoline
◦ Prices reported by 30 gasoline stations uniformly distributed throughout the viewing area
◦ Prices reported by 30 gasoline stations uniformly distributed throughout the state
◦ Prices reported by the station employees
Question 2
Select the sample most representative of the population of interest.
A college student who does laundry infrequently wants to determine the effect of blueing on what should be white clothes.
◦ Two loads of wash, one personal, one of a friend, the blueing assigned by a coin flip
◦ Reports of two friends, one of whom was given blueing
◦ Two loads of personal wash, one with, one without blueing
◦ The reports of an internet chatroom on laundry techniques
Sample tiered drug formulary for antibiotics.
Three Population Pyramids
Population Growth and Change
How to calculate present value using the compound interest formula (Question 1)
The Great Spike in World Population Growth
Human Population Growth