Surveys and Sampling Methods
Measures of Central Tendency
Histograms/ Stem-and-Leaf Plots
Scatter Plots, Correlation, Quartiles and Percentiles
Misleading Graphs and Matrices
100
Sample Groups that are taken from larger groups.
What is Cluster Sampling?
100
The average of a set of data.
What is the Mean?
100
A Graph that looks like a Bar Graph with the bars touching one another.
What is a Histogram?
100
As the x-axis increases the plot is rising.
What is Positive Correlation?
100
A rectangular arrangement of Data into Columns and Rows.
What is a Matrix?
200
Sampling from a readily available group.
What is Convenience Sampling?
200
The Middle Number(s) of a set of data?
What is the Median?
200
Mean, Median and Mode
What are the Measures of Central Tendency?
200
The Straight Line that can be drawn to closely match the plot of points.
What is the Line of Best Fit?
200
One way to alter Data to create a misinterpretation of the information.
What is Alter the Scale or Show a Portion of the Graph?
300
Survery findings that are not truly representative of the of the entire population.
What is Bias?
300
The Number(s) that appear most in a set of data.
What is the mode?
300
A Plot that looks like it was grown in a garden.
What is a Stem-and-Leaf Plot?
300
It gives ranges from -1 to 1 and tells you the closeness of the plot of points to a line.
What is the Coefficient of Correlation?
300
They are the data placed into the matrix.
What is (are) Elements or Entries?
400
Giving each member of a population an equal chance of being selected.
What is Random Sampling?
400
The Measures of Central Tendency
What is (are) Mean, Median and Mode?
400
Values that are much smaller or much greater than most of the other values.
What is (are) Outliers?
400
Analyzing data by using 3 numbers that group the data into 4 equal parts.
What is (are) Quartiles?
400
It is a Matrix with the same number of Rows and Columns.
What is a Square Matrix?
500
Selecting from a Population Group according to a pre-determined pattern.
What is Systematic Sampling?
500
The difference between the Highest and Lowest Number of a set of data.
What is Range?
500
Isolated groups of values.
What is (are) Clusters?
500
A graph that shows the distribution of data using Quartiles and and a Box.
What is Box-and-Whisker Plot?
500
It tells you the number of Rows and Columns in the Matrix.
What is the Dimensions?
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