Counting the stones We are interested in knowing the number of black stones in the box a We only need to do to obtain a reasonable estimate of stones in the box-allowing for errors of counting or estimation Ka-fu Wong C2007 ECON1003: Analysis of Economic Data Lesson 1-4Ka-fu Wong © 2007 ECON1003: Analysis of Economic Data Lesson1-4 Counting the stones ◼ We are interested in knowing the number of black stones in the box. ◼ We only need to do to obtain a reasonable estimate of stones in the box – allowing for errors of counting or estimation