# Create and Interpret Parallel Box Plots

## Interactive practice questions

The box plots show the monthly profits (in thousands of dollars) of two derivatives traders over a year.

 Ned 51015202530354045505560 Tobias 51015202530354045505560
a

Who made a higher median monthly profit?

Ned

A

Tobias

B

Ned

A

Tobias

B
b

Whose profits had a higher interquartile range?

Tobias

A

Ned

B

Tobias

A

Ned

B
c

Whose profits had a higher range?

Ned

A

Tobias

B

Ned

A

Tobias

B
d

How much more did Ned make in his most profitable month than Tobias did in his most profitable month?

Easy
Approx 2 minutes

The box plots show the distances, in centimetres, jumped by two high jumpers.

The box plots show the prices, in dollars, of the items on the menu of an upmarket restaurant and the menu of a fast food restaurant.

The box plots show the number of goals scored by two football players in each season.

### Outcomes

#### S5-1

Plan and conduct surveys and experiments using the statistical enquiry cycle:– determining appropriate variables and measures;– considering sources of variation;– gathering and cleaning data;– using multiple displays, and re-categorising data to find patterns, variations, relationships, and trends in multivariate data sets;– comparing sample distributions visually, using measures of centre, spread, and proportion;– presenting a report of findings

#### S5-2

Evaluate statistical investigations or probability activities undertaken by others, including data collection methods, choice of measures, and validity of findings