The table shows the heights of grade 11 students in sacha's school. Height (cm) : [155-160], [160-165],[165-1700],[170-175],[175-180],[180-185],[185-190], frequency: 2,6,12,11,6,4,2. Find the median, the mode and the range of heighs. b) which measure of central tendency best describes the data? explain.

Question

anonymous · Answer

help me someone

bahrom7893 · Answer

i can try..

anonymous · Answer

yes u can :)

anonymous · Answer

Mode = number that appears the MOST. According to your data, that would be in the range of 165-170.

bahrom7893 · Answer

veronometry knows this better than me..

anonymous · Answer

median is 170-175

anonymous · Answer

Median is the middle number. Since you have 43 students, the median student would be student #22. This falls into the [170-175] range.

bahrom7893 · Answer

yay i just fanned u veronometry..

anonymous · Answer

For the mean, does your teacher want you to take the middle number of each range?

anonymous · Answer

wher the heck did you get 22 from?

anonymous · Answer

Thanks Bahrom! :]

anonymous · Answer

oh yea i got it

anonymous · Answer

nvm

anonymous · Answer

There are 43 students. The middle student would be student #22.

In other words, if you listed out all the students from 1 to 43, 22 would be right smack in the middle (aka the median).

anonymous · Answer

cool ! good stuuf :P

anonymous · Answer

And, since the data isn't exact (they give you ranges versus the actual data), the BEST central tendency for this would be the MODE.