You will be able to:
- Describe the significance of calculating measures of dispersion for continuous data
- Understand the formula and intuition behind mean absolute deviation, standard deviation and variance
- Understand the formula and intuition behind quantiles/quartiles and percentiles
- Understand and interpret Interquartile distances with box plots
Summary statistics for two samples of data are
Sample 1:
mean = 19
variance = 10
Sample 2:
mean = 10
variance = 19
Which sample has the larger spread of observations?
# Your answer here Consider the following ordered set of data
4 4 4 9 5 0 5 1 5 3 5 7 5 8 6 2
6 6 6 6 6 8 7 1 7 5 7 7 8 0 8 5
- What is the IQR?
- Optional extension: Verify your answer in Python
# Your answer here Create a box-and-whisker plot for the judges' scores for an artist's performances in a talent competition.
Evan L 52
Nicole S 50
Pamela A 47
Chad O 44
Erin A 39
Jake P 38
Niecy N 36
Kate G 32
Create a box plot in matplotlib to identify the median for giving a final score to the artist. Are there any outliers ?
# Your answer here # # Your answer here Imagine that the number of marriages registered over a 10 year period were as follows:
Table 1. Number of registered marriages
Year Number of marriages
1 40,650
2 40,812
3 41,300
4 41,450
5 39,594
6 40,734
7 39,993
8 38,814
9 37,828
10 35,716
Using the data above:
# Your answer here #### Find the upper and lower quartiles
# Q1 = 38.814 Q3 = 40.812 # Your answer here # Your answer here # Your answer here