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Mathematics P2 Step 4 of 9 beginner

Grouped Data, Ogives and Box-and-Whisker Plots

Estimate a mean from grouped data, build and read an ogive, and draw a box-and-whisker plot that shows skewness and outliers.

By the end, you can

estimate the mean of grouped data, read quartiles from an ogive and interpret a box-and-whisker plot.

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This is exactly how Grouped Data, Ogives and Box-and-Whisker Plots starts, in your browser or on WhatsApp. Short messages, real examples, one step at a time.

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Grouped Data, Ogives and Box-and-Whisker Plots

QUEST MATH-P2-GROUPED-DATA

When you only have the groups

Sometimes you are not given the individual values, only how many fall into each interval. You can still find almost everything — but the answers are estimates, and saying so matters. 📊

This section is generous with marks because the methods are mechanical. The difficulty is remembering which point of an interval to use where.

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What you'll cover

  1. 1 When you only have the groupsfree preview above
  2. 2 Estimating the mean
  3. 3 Cumulative frequency
  4. 4 Drawing and reading an ogive
  5. 5 The five-number summary and the box plot
  6. 6 Outliers
  7. 7 A routine for grouped data
  8. 8 The challenge
  9. 9 What to take with you

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Grouped Data, Ogives and Box-and-Whisker Plots

LCA-2026-••••••••

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Informal learning, not an accredited qualification.

Next on the Mathematics P2 path · step 5 of 9

Scatter Plots, Regression and Outliers

14 min · R19

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Grouped Data, Ogives and Box-and-Whisker Plots: questions

How long does Grouped Data, Ogives and Box-and-Whisker Plots take?
About 14 minutes: 9 short lessons, 2 quick checks and a 5-question final challenge. Your progress is saved after every step, so you can stop and carry on later.
How much does Grouped Data, Ogives and Box-and-Whisker Plots cost?
R19, paid securely online, or 19 learning credits from your wallet. You pay once: if you don’t pass the challenge, you try again at no extra cost.
What do I need to pass?
4 out of 5 on the final challenge (80%). The quick checks along the way help you learn and do not count towards your mark.
Is the certificate accredited?
No. A MicroQuest is informal learning. Your certificate proves you completed it and has a number and QR code anyone can verify, but it is not an accredited qualification or SETA/QCTO credits, and it says so.
Can I do it on my phone?
Yes. Tap Start to learn in your phone’s browser, or send QUEST MATH-P2-GROUPED-DATA to 076 263 6000 on WhatsApp. It is the same MicroQuest and the same certificate either way.

Grouped Data, Ogives and Box-and-Whisker Plots

R19 · 14 min · certificate

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