Section 1.5 + 1.6

Question 1

what does a histogram do to the data?

Answer 1

breaks it up into class intervals

Question 2

what are the drawbacks of a boxplot?

Answer 2

summarises many of the data distribution features

Question 3

what is the benefit of a boxplot?

Answer 3

does not require the time consuming process of dividing the data into classes

Question 4

when summarising quantitative data we usually describe the:

Answer 4

1. central tendency
2. variability
3. shape of the data distribution

Question 5

what are data which is symmetrical about the central tendency called?

Answer 5

symmetric

Question 6

if the data is not symmetrical, what do we call it?

Answer 6

skewed