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.
World water day is celebrated on ____ every year.
Phytosiderophores have high affinity to
What order do the majority of stored food grain insect pests belong to?
Enzymes are by nature:
Main function of bio-fertilizer is
Which of the following crop is known as major millet?
What was the contribution of the livestock sector to the agriculture and allied sector's Gross Value Added (GVA) in the fiscal year 2021-22?
The International Union for the Protection of New Varieties of Plants (UPOV) is an intergovernmental organization with headquarters in
Movement of nutrient ions from soil to plant roots by:
What is the premium rate payable by PMFBY beneficiaries for Rabi crops (% of SI or Actuarial rate)?