Environment & Ecology · Environmental Science
An environmental scientist classifies water quality into categories: 'Excellent', 'Good', 'Moderate', and 'Poor'. Later, she computes the mean score assuming equal spacing between categories. Which statement is most appropriate regarding this analysis?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1It is invalid because an ordinal scale does not ensure equal intervals between categories.✓
- 2It is invalid only if the distribution is skewed.
- 3It is valid because the categories are ordinal.
- 4It is valid if the sample size is large.
Correct answer
It is invalid because an ordinal scale does not ensure equal intervals between categories.
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