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CBSE Class 10 Mathematics Question 19 of 25

Statistics — Question Ex 14.3 Q4

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Ex 14.3 Q4
Question

The lengths of 40 leaves of a plant are measured correct to nearest millimetre, and the data obtained is represented in the following table:
NCERT Solutions For Class 10 Maths Chapter 14 Statistics Ex 14.3 Q4
Find the median length of the leaves.

Answer

Exercise 14.3 Class 10 Maths NCERT Solutions pdf download Q4
Exercise 14.3 Class 10 Maths NCERT Solutions pdf download Q4.1

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CBSE Class 10 Statistics — Complete Guide

Statistics carries 5-7 marks and is highly scoring. Mean, median, and mode of grouped data are guaranteed questions.

Quick Revision: Key Formulae

  • Mean (step deviation): a + (Σfiui/Σfi) × h
  • Median: l + [(n/2 − cf)/f] × h
  • Mode: l + [(f1−f0)/(2f1−f0−f2)] × h
  • Empirical: 3 Median = Mode + 2 Mean

Most Important Questions

  1. Find mean using step deviation or assumed mean method
  2. Find median of grouped data
  3. Find mode of grouped data
  4. Draw ogive and determine median graphically

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