Data and graphs

Pick the right graph, spot the odd result, and say what the data shows.

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Learn it

Record, graph and analyse data, and draw a conclusion from it

Idea 1 of 4

Tables come first

Independent variable in the first column, dependent variable after it, units in the headings — never next to each number. Repeat trials get their own columns, then an average column.

Know it by heart

Say each one in your head, then tap to check.

Try it

Play — nothing here is marked

One result doesn't fit. Tap it to leave it out of the average.

Temperature (°C)	Trial 1	Trial 2	Trial 3	Mean
20				61
40				47.3
60				30
80				20

Units are in the column headings, never next to each number.

Which graph?

Independent variable along the bottom, dependent up the side — with units.

A full-marks answer

Three trials gave dissolving times of 42 s, 44 s and 61 s. Identify the anomaly and calculate the mean.

3 marks

Built one line at a time — say the next line before you reveal it

61 s is the anomaly.(it is far from the other two, which agree)

2 to go

Words to know

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Step 2 · last bit

Ready? Prove it.

A round of ten. Score 8 or more and this step is done — then on to the solar system.

Start the round of ten Next step: The solar system ›