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📈 Optional Mathematics - Class 10
Lesson 11 · Comparison of Two Data using Whisker Box Plot

Standard Deviation

Optional MathematicsSubject
8 minEstimated read
Activity 1

Comparing two students' marks

Method
  • The marks of two students in an examination are given below.
  • Student A: 68, 70, 72, 69, 71, 70, 70
  • Student B: 40, 95, 50, 90, 60, 70, 80
  • Study these marks and discuss the questions that follow.
Discussion
  • Whose result is better?
  • How can you tell whose result is better?
  • Find the mean marks of student A and student B.
  • When the mean marks of both students are the same, how can they be compared? Find out.
  • Find the standard deviation of the marks of student A and student B.
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