[toblerone93]

I think this is the right place to post an AS Statistics question?

Hi,

Interpolation wasn't explained to me at all by my teacher, he just expects us to know

Anyway, could someone please "use interpolation to find an estimate for the median wage"?

Its from this table:



If it were possible, could you give a step by step method?

I know I'm asking so much, but I would literally love you forever...

If you can't be bothered to do it, maybe a few hints.

Thanks everyone

[Coursework.info]

It's been a while since you posted and nobody's replied yet...maybe you should check out MarkedbyTeachers.com, TSR's sister site. It has the largest library of essays in the UK.

They've got over 160,000+ essays, projects, assignments, coursework etc.. all written by GCSE, A Level and Uni students. You get access either by publishing some of your own work, or paying £4.99 for a month's access. Both ways give you unlimited access to all of the essays.

All their documents are submitted to Turnitin anti-plagiarism software, so it can't be misused, and the site’s used by hundreds of thousands of UK teachers and students.

Hopefully you'll find it useful

[markmat]

It looks like the easiest way to tackle the question is by considering the cumulative distribution function (CDF). Then the given data would read: CDF(174) = 0, CDF(225)=4/65, CDF(300)=(4+8)/65, etc. Now you need to interpolate CDF and then find it's inverse from 0.5

Good luck

[markmat]

Now I have a better idea: lets denote by f the inverse of the CDF, then the given data is f(0)=174, f(4/65)=225, f(12/65)=300, etc. Now interpolate and calculate f(0.5).

[toblerone93]

(Original post by markmat)
Now I have a better idea: lets denote by f the inverse of the CDF, then the given data is f(0)=174, f(4/65)=225, f(12/65)=300, etc. Now interpolate and calculate f(0.5).

Cheers!

Give you rep tomorrow