Vocab
What is the minimum?
The smallest number in the data set
What is the maximum?
The largest number in the dataset
Slide 1: What should the red box be labeled?
Hint: these lables will be stuff from the vocab section
Outliers
What does IQR stand for?
Inter-quartile range
plots --> box plot --> input the data
What is an outlier?
What is the median?
The middle of the data set (the middle-most value)
Slide 2: What should the red box be labeled?
Minimum
How do I find the IQR?
Q3-Q1
Show me the IQR for this dataset
1,2,4,7,16,3,4,8,53,67,23,57,35,23
31
What is the lower quartile?
The median of the bottom half of the data
What is the upper quartile?
The median of the top half of the data
Slide 3: What should the red box be labeled?
Median
What does the IQR represent?
The distance covered by the middle 50% of values
Show me an example of an investigation with 2 variables (like sudoku) and tell me whether it is an experiment or observational study
(anything with 2 variables)
What symbol/abbreviation represents the lower quartile
Q1
What symbol/abbreviation represents the upper quartile?
Q3
Slide 4: What should the red box be labeled?
Q1 (first quartile/lower quartile)
How do I find the lower and upper fences for my outlier cutoff? (the equation)
Lower Fence: Q1-1.5*(IQR)
Upper Fence: Q3+1.5*(IQR)
Calculate the upper and lower bound for this data
1,2,4,7,16,3,4,8,53,67,23,57,35,23
(-42.5, 81.5)
Does minimum/maximum value include outliers?
No
get 2-3 minutes to answer....
Come up with a good strategy/pneumonic device/chart for remembering some of the vocab (could be related to IQR, box plots, vocab, or other statistics things)
Best answer gets the win!
Ill give some points tho if the second group does really well too
Slide 5: What should the red box be labeled?
IQR
Where is my IQR most useful for this class (how do we use IQR)?
Finding out where the cutoff is for my outliers
Show me how to find the Summary Statistic
Datasets--> functions --> summary statistic