Unit 3 Flashcards
What is Interpolation?
When an estimate is made within the given data range
What is Extrapolation?
When an estimate is made outside the given data range
Which is more accurate, Interpolation or Extrapolation?
Interpolation, as we can’t always assume a trend will continue
What is an Outlier?
An extreme value that doesn’t fit the general trend
What is Qualitative Data?
Data that can only be written in words, not numbers
What is Quantitative Data?
Can be written in numbers
What is Discrete Data?
Can only take specific values and not the values in-between
What is Continuous Data?
Can take any value within your range
What must a Stem and Leaf Diagram Contain?
A key
What data’s compare the data ‘on average’?
Mean, Median and Mode
What data compares how spread out/consistent the data is?
Range
What is a Frequency Polygon?
Joins plotted points with a straight line
What does Correlation not imply?
Causation
How is an Estimate of the Mean from a Grouped Frequency Table Calculated?
Using the Middle Value of the Interval
How is Grouped Data Frequency Plotted?
At the Middle of the Interval
