Chapter 8 · Class 10 ICSE · Formula Sheet

Statistics (Mean, Median & Mode) Formulas — Class 10 ICSE

Compute mean, median, and mode for grouped frequency distributions and draw ogives.

Key Formulas

Mean (Grouped)

\bar{x} = \dfrac{\sum f_i x_i}{\sum f_i}

Median (Grouped)

l + \left(\dfrac{\frac{n}{2} - cf}{f}\right) \times h

Mode (Grouped)

l + \left(\dfrac{f_1 - f_0}{2f_1 - f_0 - f_2}\right) \times h

Step Deviation Mean

\bar{x} = a + h \times \dfrac{\sum f_i u_i}{\sum f_i}

Worked Examples

1Using: Probability

A die is thrown. Find P(getting an even number).

Step 1: Even outcomes: {2, 4, 6} = 3.

Step 2: Total outcomes = 6.

Step 3: P = 3/6 = 1/2.

Answer: 1/2

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Frequently Asked Questions

How many formulas are in Class 10 ICSE Statistics (Mean, Median & Mode)?+
There are 4 formulas in the Statistics (Mean, Median & Mode) chapter for Class 10 ICSE. Each formula is essential for solving problems in this topic.
How to remember Statistics (Mean, Median & Mode) formulas easily?+
Practice regularly with worked examples, group related formulas together, and use SparkEd's interactive practice mode to reinforce your memory through problem-solving.
Are these Statistics (Mean, Median & Mode) formulas enough for exams?+
Yes, these formulas cover the complete ICSE Class 10 syllabus for Statistics (Mean, Median & Mode). Practice applying them to different types of questions for full exam readiness.

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