1/21/2003
- Discussion of Practice Problems
- Ohio license plates contain 3 letters followed
by 4 digits. How many license plates are possible?
- How many phone numbers can be created for a specific
area code?
- Birthday problem - What is the chance that two
students in this room have the same birthday?
- Chuck-a-luck - You pick a number from 1 to 6
and your friend rolls three dice. If the number you pick comes up
on all three dice you win $3. If your number comes up on two of the
dice you win $2. If your number comes up on 1 of the dice you win
$1. If your number does not appear on any of the dice, you pay your
friend $1. Should you play this game? That is, how much would
you expect to win per play of this game?
- Class Activity - Streaky Behavior: Runs in Binomial
Trials - Activity Based Statistics
- Discussion of Reading Assignment
- Parameter versus Statistic
- Bias versus variability
- Sampling errors versus non-sampling errors
- Undercoverage versus nonresponse
- Stratified sample versus probability sample
- Different types of bias in sampling
- Distribution of a variable
- Graphical Displays
- Pie Charts
- Bar Graphs
- Pictograms
- Line graphs (time series plots)
- Histograms
- Stemplots
- Skewed to the right versus skewed to the left
- Descriptive Statistics
- Median
- Quartiles
- Five-number summary
- Boxplot
- Mean
- Standard Deviation