The data below describes the number of correct answers 50 students had on their recent exam (which contained 50 questions). Two student got 1-10 questions correct. Twelve students got 11-20 questions correct. Twenty two students got 21-30 questions correct. Eight students got 31-40 questions correct. Six students got 41-50 questions correct. Find the median.

Question

anonymous · Answer

25.5 po ang sagot.

anonymous · Answer

no thats not the answer

anonymous · Answer

I think the median is 40

anonymous · Answer

nope not the answer either

anonymous · Answer

There are two students missing... as I read the problem...

anonymous · Answer

interval         f        cf
41-50          6        50
31-40          8         44
21-30          22      36
11-20         12       14
1-10           2         2
total          50

 mdn = LL + {[(n/2)-cf] / f} (i)
         = 20.5 + {[(50/2) - 14] / 22} (10)
       = 25.5

anonymous · Answer

uy medal ko

anonymous · Answer

redepsilon your right I did the same thing as you wat happen was i had to round it up to 26

anonymous · Answer

do not round it off because 0.5 is significant. so it must be 25.5.  asan na yung medal ko?

anonymous · Answer

my homework is on the internet and for some reason it would only allow two number and when i round it up it was correct but planning on bringing it up to the teacher