From the five number summary 7, 13, 17, 21, 43 found after the class has taken the exam, which statement below is true?

A. The mean of the lowest 25% is 7
B. 25% of students earned 17 or fewer
C. 75% of students earned 17 or more
D. the highest score in the class was a 43

Question

From the five number summary 7, 13, 17, 21, 43 found after the class has taken the exam, which statement below is true?

A. The mean of the lowest 25% is 7
B. 25% of students earned 17 or fewer
C. 75% of students earned 17 or more
D. the highest score in the class was a 43

563blackghost · Answer

Which answer do you think it is?

howard-wolowitz · Answer

I think C for some crazy reason

anonymous · Answer

The highest score in the class in my opinion is 43.

howard-wolowitz · Answer

yeah, i really am not sure on this one soi need someone else to explain it and help me

howard-wolowitz · Answer

@jim_thompson5910  can you shed some light

563blackghost · Answer

attachment

563blackghost · Answer

So its related to the box and whiskers plot O.O, im sorry but i never got that...

howard-wolowitz · Answer

me either

563blackghost · Answer

https://www.khanacademy.org/math/probability/descriptive-statistics/box-and-whisker-plots/v/constructing-a-box-and-whisker-plot

563blackghost · Answer

Lets try determining the median of the summary first....ok?

howard-wolowitz · Answer

ok

563blackghost · Answer

So the median is half the summary so|dw:1452233939040:dw|so $$median=17$$