# C13 · Repair table units

## Boundary

A numeric difference alone does not identify the measured quantity.

## Complete source

Fictional display notebook lists sample A, trial1, collected water8 mL; sample B, trial1, collected water12 mL. It supplies no centimetres.

## Id

C13

## Invitation

Repair a table that wrongly labels its last column Length/cm.

## Next try

Try an unrelated parcel-length table and choose its actual quantity/unit before graphing.

## Ordinary possible response

The column is Collected water/mL because those are the quantities supplied.

## Title

Repair table units