Edexcel IGCSE Maths 復(fù)習(xí)筆記 6.3.1 Cumulative Frequency What does cumulative frequency mean? Cumulative?basically means “adding up as you go along” So cumulative frequency means all of the frequenc...
Edexcel IGCSE Maths 復(fù)習(xí)筆記 6.2.1 Histograms Aren’t histograms just really hard bar charts? No! There are many mathematical differences that you should be aware of but the key difference between a...
Edexcel IGCSE Maths 復(fù)習(xí)筆記 6.1.5 IQR & Range What are IQR and the range? The three averages (mean,?median?and?mode) measure what is called?central?tendency?– they all give an indication of wh...
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Edexcel IGCSE Maths 復(fù)習(xí)筆記 6.1.4 Calculations with the Mean Solving problems involving the mean Because the mean has a formula it means you could be asked questions that use this formula backward...
Edexcel IGCSE Maths 復(fù)習(xí)筆記 6.1.3 Averages from Grouped Data What is grouped data and why use it? Some data for a particular scenario can vary a lot For example, the heights of people, particularl...
Edexcel IGCSE Maths 復(fù)習(xí)筆記 6.1.2 Averages from Tables & Charts How do we find averages if there are lots of values? In reality there will be far more data to work with than just a few numbers...
Edexcel IGCSE Maths 復(fù)習(xí)筆記 6.1.1 Mean, Median & Mode Why do we have different types of average? You’ll hear the phrase “on average” used a lot, from politicians talking about the economy to s...
Edexcel IGCSE Maths 復(fù)習(xí)筆記 5.5.1 Combined Transformations Combined Transformations – what do I need to know? Combined transformations are more than one transformation, one performed after the aft...
