tuesday, march 4, 2014mat 312. tuesday, march 4, 2014mat 312
TRANSCRIPT
MAT 312
. . . PENNIES for the AGES. . .
Push the “Sample More Data” button on the screen and read the average age of a sample of 16 pennies taken from the jar.
Note the horizontal and vertical scales on the grid here and then record that (rounded) average age using a properly scaled X.
Tuesday, March 4, 2014
Prob & Stat (MAT 312)Dr. Day Tuesday March 4, 2014
Grab 16 Pennies at Random then Calculate and Plot Their Average Age
Incoming Assignment to Discuss and Collect Stats-Class Measurements: Scatter Plots and Big-3 Characteristics
2-Variable Data Sets Characteristics Visual and Numerical Representations Why Explore and Analyze 2-Variable Data Sets?
Generating Equations for 2-Variable Lines of Best Fit Spaghetti Lines Least-Squares Regression Lines Median-Median Lines
Assignment for Next TimeTuesday, March 4, 2014 MAT 312
MAT 312
Couples’ Ages at Marriage
Tuesday, March 4, 2014
MAT 312
Read Chapter 4
Assignment #4: Scatter Plot of Height vs Arm Span
Assignments
Tuesday, March 4, 2014
MAT 312Tuesday, March 4, 2014
Normal Distribution: Empirical Rule
MAT 312Tuesday, March 4, 2014
MAT 312Tuesday, March 4, 2014
MAT 312Tuesday, March 4, 2014
MAT 312Tuesday, March 4, 2014
MAT 312
Representing DataDisplay Summary
Visual
Line Plot (Dot Plot)
Stem-and-Leaf Plot
Scatter Plot
Circle GraphBar GraphHistogram
Box-and-Whisker Plot
Numerical
Raw DataOrdered ListFrequency
Table
Measures of Center(mean, median, mode)
Measures of Spread(range, deviations,
variance)Markers of Locations
(percentiles, 5-number summary)
Tuesday, March 4, 2014