Urgent help - statistical analysis of data, absolute error and mean median and interq Watch

hurricaneee
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I chaps I have to have this question done for tomorrow. Its statistical analysis of data, absolute error and mean median and interquartile range. I missed the classes where we went over this as I had the flu and I am not sure where to go from here.










Time to the nearest minute
No' of Children
10 – 19
20 – 24
25 – 29
30 – 39
40 – 49
50 – 64
65 – 89
8
15
25
18
12
7
5



I have found the class width, fror example time 10 - 19 minutes can be between 9.5 and 19.5. So the width is 10. I then devided the number of children/frequency by the class width, to give me 0.8 for the first row of data. I have done the whole table but do not know where to go from here.

How to find the mean, median and interquartile range and what type of graph would be best to represent this data?

All help is deeply appreciated!
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hurricaneee
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anyone?
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TenOfThem
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(Original post by hurricaneee)
anyone?
You are asking for too much

If you missed the lessons, go see the teacher, it is their job to go through all of this with you

But, it is not just a few post and bam, sorry
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