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Example 15 - Consider a small unit of a factory where - Combined - Mean Median Mode

Example 15 - Chapter 14 Class 9 Statistics - Part 2
Example 15 - Chapter 14 Class 9 Statistics - Part 3


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Example 15 Consider a small unit of a factory where there are 5 employees : a supervisor and four labourers. The labourers draw a salary of Rs 5,000 per month each while the supervisor gets Rs 15,000 per month. Calculate the mean, median and mode of the salaries of this unit of the factory. = "35000 " /"5" = 7000 ∴ Mean salary is Rs 7000 per month. Median , we need to arrange salaries in ascending order: = "5000, 5000, 5000, 5000, 15000 " N = number of employees = 5 (odd) Median = ((𝑁 + 1)/2)^𝑡ℎ term = ((5 + 1)/2)^𝑡ℎ term = (6/2)^𝑡ℎ term= 3rd term Median = 5000 ∴ Median is Rs 5000 per month. Mode: The mode is highest occurring frequency of the distribution. In the data: 5000, 5000, 5000, 5000, 15000 We can see that, 5000 repeats most of the times. ∴ Modal salary is Rs 5000 per month.

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.