Ch. 10.1 Flashcards
A question that can be answered by gathering data…..
Statistical Question
When collecting data, the entire group in question is called……
Population
The subset of the population that is actually observed, questioned, or analyzed….
Sample
The number of times it occurs in a set of data…
Frequency
A large empty interval in data….
gap
Several values of data that lie close together….
cluster
Shows the number of scores that occur in each interval….
Histogram
Displaying data so direct visual comparison over a period of time can be made.
Bar Graph
Useful for plotting data over a period of time….
Line Graph
Used for comparing parts to a whole…
Circle Graph/Pie Chart
Uses pictures or icons to convey the quantities being represented…
Pictograph
pairs of numbers can be plotted as points on a portion of the x, y,-plane ..
Scatter Plot
Distant point that is distant from other observations…lie’s about the trend in data…
outlier
A specific line that best fits some pairs of data….
regression line
