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The mean salary of 8 staff in a Jaipur shop is Rs 18,000. The owner, whose salary is Rs 50,000, is then included.
Does the mean or the median better describe a 'typical' salary, and what is the new MEAN of the 9 salaries?

Class 9Measures of Central TendencyStatistics and Probability
  • AMedian is better; new mean = Rs 21,556
  • BMean is better; new mean = Rs 21,556
  • CMedian is better; new mean = Rs 22,000
  • DMedian is better; new mean = Rs 20,000

Step-by-Step Solution

Old total = . New total = 144000 + 50000 = 194000. New mean = ... approximately Rs 21,556. Because the owner's salary is a large outlier, the median better represents a typical salary.
Answer: A) Median is better; new mean = Rs 21,556

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