Sampling good and very clear.

You don't appear to have a plan? You have told me what you have done not what you will do and why you will do it. It is not good enough to say what you are going to do you must say why in your plan if you are to get above a C. You must justify why you will use these diagrams to help you investigate further if you are going to add them to your coursework. There is no point just doing all the diagrams you know if you don't know what they show at the end.

You tell me you have certain diagrams or calculations but I can't see any of them. There are big marks for this in the grading criteria.

Very difficult to say what you would get for this as it stands as so much has not been included in what you have sent.

You have to use B/C grade diagrams to get these grades - scatter diagrams, cumulative frequency, stem and leaf diagrams, box plots or calculations - grouped mean etc. and at this level analyse your chosen hypothesis. You must justify why you will use these diagrams to help you investigate further if you are going to add them to your coursework. There is no point just doing all the diagrams you know if you don't know what they show at the end. The averages and bar charts you have done so far are only E grade diagrams and calculations

Plan not extensive enough to get above a D grade.
The main body of the work is very basic and without the complete plan and a strong analysis you will struggle to get above a D/E grade. With a bit of work on both you could easily be in the C grade area with your chosen task.

A B grade is 6 6 6, A grade 7 7 7 and A* grade 8 8 8. I think you are definitely in the B/C grade area but I haven't marked this task a lot as we do a different task in my college.

To improve to A grade or above you have to try and combine factors. As you have only looked at one factor, age, this would mean quite a bit more work.
You need to create a connection between these factors and price. This would need to be algebraic. I have suggested to a few students to generate this from scatter diagrams and lines of best fit. Not sure if this would be the best way for you but if you have time might be worth a go.

I would not use a line from a scatter diagram to find quartiles. It is usual to find quartiles from a cumulative frequency diagram. I don't know how you could have done this. Is this what you meant? Highlighted in bold on work.

Line comes from scatter diagram so you should plan to do a scatter diagram not a line graph. Highlighted in bold on work.

A good piece of work but as you haven't tried to combine factors to extend the task I think around 6 6 6 which is about a B grade. Each of the three strands is out of 8 which is an A*.

I haven't checked all of your calculations but I will assume you have worked out any numbers correctly.

Excellent plan and good strong analysis and results.

A B grade is 6 6 6, A grade 7 7 7 and A* grade 8 8 8. I think you are definitely in the B grade area if not A area but at my college we only do intermediate tier so I don't have much experience of marking work at this level.

To improve you could try to combine factors (type of article) from the papers to create a connection between them and the length of the sentences in that paper. This would need to be algebraic. I have suggested to a few students to generate this from scatter diagrams and lines of best fit.

You need to start with a plan of what you think will be useful - how you will collect your sample, what calculations and diagrams are going to help you prove your hypothesis. It doesn't look like you have done this stage completely. It is not good enough to say what you are going to do you must say why in your plan if you are to get a C or above. You have used B/C grade diagrams - scatter diagrams, cumulative frequency, stem and leaf diagrams, box plots or calculations - grouped mean etc. and at this level analysed your chosen hypothesis. You must justify why you will use these diagrams to help you investigate further if you are going to add them to your coursework. There is no point just doing all the diagrams you know if you don't know what they show at the end.

The main body of the work is very strong but without the complete plan and a strong analysis you will struggle to get above a D. With a bit of work on both you could easily be in the B grade area. To aim higher you will need to start combining factors in algebraic form.

"Germination is the growth of a seed which requires water, oxygen and a temperature within a certain range. In some seeds light is also needed, under these conditions the seed takes up water faster via osmosis".

Osmosis is not related to either oxygen or light levels - this sentence implies it is.

"They will become germinated when they change from their original colour to a cream colour".

This is a very strange definition of germination! The seed has only germinated when you can see the young root or shoot protruding from it!

There is not really very much to assess here! The introduction is obviously very important. In your method, which is OK in principle, you have made one very basic mistake. You have forgotten to say that you should actually put the seeds into the petri dish!!!! You should, incidenatlly, use AT LEAST 20 seeds per dish. 50 would be better.

There are 3 main components to a statistics coursework - a plan, carrying out the plan and interpretation (what your diagrams and calculations show).
You need to finish your plan of what you think will be useful - what calculations and diagrams are going to help you prove your hypothesis.

The middle is then to actually do the work. This might change if you find some unexpected results but this is not a problem. Just make sure you comment on why you have changed from your original ideas. At the end you comment on what you have found.

I can't actually tell you what to do - this is against all exam board guidelines but I hope these hints will help. If you want me to check any work you complete you can send it in for marking.

Grade wise you get 8 for an A*, 7 for an A, and so on in 3 strands.
I think the work you have completed so far is about 5 5 4/5 - I can't decide on the last one. This is about a C grade. If you want to improve I would continue with the quadratic equation that you have started on at the end.