Question

∩ ° ∠ ° ∩ ⇒ what conclusion can be drawn from the quiz score s shown below ?

ken ’ s class : ∫ 72 , 78 , 83 , 84 , 85 , 87, 92 ∫
judy ’ s class : ∫ 76 , 78 , 85 , 87 , 89 , 92 , 98 ∫

CHOICE A ⇒ the test score s in ken ’ s class are more spread out compared to those in judy ' s class .

CHOICE B ⇒ the median score is equal to the mean score in both classes .

CHOICE C ⇒ the mean score is greater in judy ’ s class compared to ken ’ s class .

CHOICE D ⇒ the median score in ken ’ s class is greater than the median score in judy ’ s class .

Answer 1

the meadian score is greater in Judy’s class compared to Ken’s class.

Kens class has a mean score of 83, and Judy's class has a mean score of 86.43(rounded) so, judging by the mean, Judy's class is smarter. If we take a look at the median, (Ken: 84, and Judy: 87) then Judy's class is smarter. So, overall Judy's class is smarter than Ken's class.