Graphs/Charts
What graph is used to compare amounts of data
Facts and statistics collected together for reference or analysis.
What is frequency?
How many times something (a data value) occurs
List a way to collect data
Surveys or Research
What are the 3 measures of central tendency
Mean, Median, Mode
What type of graph is used in the stock market?
Line graph
What are the two types of variables?
Numerical and Catagorical
What is a subset?
A group within a larger group
Why could collecting data be useful?
Answer Questions or see some type of relationship
What is Mode?
Data value with highest frequency
If you want to see the relationship between your age and your annual income, what type of graph will you need to see that?
Scatter Plot
How do you find range?
Largest value minus the smallest value
What is a two-way frequency table?
A data table that displays information pertaining to two categories (subsets) from one group
Statistical Questions
Which measure of tendency requires you to add all up the data points then divide the number of data points
Mean
What chart/table do I need to answer "what percentage of students of students wear a black sweater and white shoes"
Pivot Chart/table
What does it mean to have variability?
The data values are not all the same
What type of tables is used in the two-way frequency?
Pivot Table & Column Chart
What always comes first when collecting data?
Asking Questions
What is an outliner?
A value that is very different from the other values in a datasetThis
Name all the types of Graphs we have learned about!!!
Line Graph, Pie Chart, Bar Graph, Scatter Plot, Box Plot, Histogram
When we have too many data values what graph do we use to represent in our data
Histograms
What is Relative Frequency?
The number of times an event occurs divided by the total number of events occurring in a given scenario
List the order of the Data Cycle!!!!!
Asking Questions, Consider Data, Analyze Data, Interpret Data
Which measure of central tendency is affected by outliers?
Mean