頭兩part就問左我 (1) median 同 inter quartile range
(2) mean 同 standard deviation
最後佢話a newsagent wants to compare last year's sales with other years
state wether the newsagent should use the (1) or (2) to compare daily sales?
Give reasons. 點答好?
可唔可以比D (1)同(2) 的 Adv 同 Dis adv我? Thanks a lot!!
更新1:
明白哂果兩樣的特質,thanks 但係我仲唔係好明點處理條題目: whether the agents should use (1) iqr and median or (2) mean and sd 個marking到寫左用(1) reason係 assuming other years are skewed. why?
