AQA Statistics 1 1.03 Finding the Median and Interquartile Range (TI-82 STATS)

[Mxxrij]

is there a written method to find interquartile range without the graph?

[saif]

these help so much with core maths thank you!!!

[k.iskandar]

Do you have to use cumulative frequency graph to calculate the median and quartiles or is linear interpolation method a better method to use during exams? I know it's subjective, but would you advise students to use linear interpolation method for during exams?

[Legenddeadmanever]

How would you find the median if the the first x was
<7
And last x was
>22

[Legenddeadmanever]

Quick query Jack: can you draw a Cumulative Freq graph for discrete data? Im assuming you couldnt but can you? Thanks

[greybeard]

IQ range you got was different both times even though it's the same numbers? Or am I missing something obvious, because obviously 213 - 71 =/= 6 .... ?

[scotttaylor]

quick question, i dont have one of those Ti-82 calculators i only have a basic one, how would i find the median out on this

[simplyciola]

Dyou have videos of how to work this out with a scientific calculator?

[faz]

How do you work out the interquartile range using a normal casio calculator?
Thanks in advance

[Legenddeadmanever]

And how would you find the mean for the same