Lecture 5

Question 1

Interquartile range

Answer 1

The accompanying metric of spread for the median

Question 2

First quartile

Answer 2

25% and 75% of the observations in each side (0.25n)

Question 3

Second quartile

Answer 3

Median: 50% of the observations in each side

Question 4

Third quartile

Answer 4

75% and 25% of the observations in each side (0.75n)

Question 5

Median

Answer 5

Middle of the distribution

Question 6

Mean

Answer 6

“Centre of gravity”

Question 7

Boxplot (box-and-whisker plot)

Answer 7

Representing data distributions by their quartiles