AS Stats Chapter 3: Representations of Data

5 flashcards · Mathematics · by TheoTyson

1. How are outliers calculated?

   Values that are a certain number of standard deviations or IQRs above Q3Q_3Q3​ or below Q1Q_1Q1​ .

2. What is cleaning the data?

   Removing anomalies from the data.

3. What should a box plot look like?

4. What is the formula for frequency density?

   frequency density=frequencyclass width\text{frequency density} = \frac{\text{frequency}}{\text{class width}}frequency density=class widthfrequency​

5. How is a frequency polygon created?

   By joining the middle of the top of each bar in a histogram.