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CBSE Class 10 Mathematics Question 16 of 25

Statistics — Question Ex 14.3 Q2

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Ex 14.3 Q2
Question

If the median of the distribution given below is 28.5, find the values of x and y.
NCERT Solutions For Class 10 Maths Chapter 14 Statistics Ex 14.3 Q2

Answer

Ex 14.3 Class 10 Maths NCERT Solutions pdf download Q2
Ex 14.3 Class 10 Maths NCERT Solutions pdf download Q2.1

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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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