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i cant draw a graph for my question i have to describe it
I haven't got enough time to help you with all this Remember the median is the middle value mean = sum of all the values divided by 7
and the range = highest value - lowest
so would you suggest I put that all values are the same?
guys, each time i do it i draw graphs but i wouldnt know how to put them into the words for the answer
the median is the same for all three - check out the middle value
i see its 11
right Have have you worked out each of the mean's?
no i was trying to figure out what standard deviation was
i do it now
A: 11 mean B: 11 mean C:11 mean
So, thats something thats similar
oh, and the median is the same for all three
right the above histogram is for the list C and gives an idea of the distribution of the numbers
yes mean and median are the same
and also the range is the same 17 - 5 = 12 in each case
oh i missed that
you can draw similar histograms for A and B to show the difference in distribution of the values
the standard deviation is a bit more complicated do you know how to work that out? its values gives an idea of the spread of data within the data set.
For the standard deviation of "A" I got 4.3
For the standard deviation for "B" I got 5
For the standard deviation for "C" I got 6
yes that figures the spread is not that much different but because of the 3 5's and 3 17's in C it will be greater that A or B.
So, my final answer answer is gonna be: For all three, mean, median and range are the same but standard deviation is different in all three.
- well say std dev for C is greater than B and B greater than A.
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