Mean · Median · Mode · Charts & Tables

🔍 Data Detective

Read the Data. Spot the Pattern. Solve the Mystery.

Crack statistics cases: read bar charts, pie charts and frequency tables, and compute the mean, median and mode — before the timer runs out. Free to play, no login needed.

Set Up

Choose Your Case

Pick a mode, difficulty and timer, then start investigating. No login needed.

Your Brief

Chart Detective

Read bar charts to uncover the twisted truth about votes, scores and totals. Spot the highest bar, chase totals and compare differences before the timer catches you.

Choose Your Case — Mode
Investigative Level
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Master statistics with Data Detective

Data Detective turns CBSE and ICSE statistics revision into a detective story. Practise reading bar charts, decoding pie charts, computing the mean, finding the median and mode, and interrogating frequency tables — all with instant feedback and step-by-step explanations. Every dataset is generated fresh so no two cases repeat.

What you will practise

  • Mean = sum of observations ÷ number of observations.
  • Median = the middle value after sorting (average of the two middles when n is even).
  • Mode = the most frequent value; datasets with no repeated value have no mode.
  • Pie sector angle = (category value ÷ total) × 360°.
  • Reading totals, differences, highest/lowest and averages from graphs and tables.

Statistics and data handling appear throughout the school curriculum. Practise alongside our Class 8 Mathematics and Class 9 Mathematics study material, then challenge yourself with more maths games.

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