Section 1.4 Flashcards
1
Q
why measure spread?
A
we want to summarise the data
2
Q
how is the range calculated?
A
maximum - minimum
3
Q
what are percentiles (or quantiles)?
A
relative locations of a measurement compared to the rest of the data
4
Q
what is Tukey’s Hinge Method?
A
- lower quartile Q1 is median of lower half of data
-upper quartile Q3 is median of upper half of data
5
Q
what is the interquartile range the measure of?
A
spread
6
Q
A
