Question
In descriptive statistics, which of the following
measures is least affected by extreme values (outliers)?Solution
The median is the middle value in a dataset when the values are arranged in ascending or descending order. Unlike the mean, which can be heavily influenced by extreme values or outliers, the median is much less sensitive to such values. Outliers can skew the mean significantly, but the median remains unaffected because it is based on the position of the values rather than their magnitude. This makes the median a more reliable measure of central tendency in datasets with outliers. For example, in income data where a few high-income individuals distort the mean, the median provides a better representation of the typical value. Why Other Options Are Incorrect: • A: The mean is highly sensitive to extreme values. A single outlier can significantly alter its value. • C: The mode represents the most frequent value in the dataset and can be skewed if outliers occur frequently, though it is less sensitive than the mean. • D & E: Both variance and standard deviation measure the spread or dispersion of the data, and they are highly affected by outliers since they are based on squared deviations from the mean. Extreme values increase the variance and standard deviation.
Who was the author of "The General Theory of Employment, Interest and Money" that laid the foundation of macroeconomics as a separate branch of economics?
Consider the following statements with reference to Max Theodor Felix von Laue.
1. He was the German recipient of the Nobel Prize for Physics in ...
The Prime Minister of Bangladesh, Sheikh Hasina was conferred with which of the following prestigious awards on 20 September 2021?
Which of the following natural elements is the primary element used in computer chips?
According to the Census of India 2011, what was the percentage of Sikh communities in the total population in India?
Who has been appointed as the new head of Parliament security?
ISO 20222 is related to:
In India all loans that are below __________ are considered as micro loans.
Deepika starts her evening walk facing north and walks for 2 km. Then, she takes a right turn and walks for another 2 km. Finally, she takes a left turn...
Which town was a collection centre for cotton from Deccan to be exported in 1862?