Practice question

MCQ

Question

The mean, mode and standard deviation of a data set are 10, 13 and 1.5, respectively. The value of coefficient of skewness is:

Options

Choose one · Correct answer highlighted

2 -3 3 -2 Correct

Explanation

Karl Pearson's coefficient of skewness = (Mean – Mode)/SD measures asymmetry. Substituting mean 10, mode 13, SD 1.5 yields (10-13)/1.5 = -3/1.5 = -2. Negative value indicates left skew, consistent with mean less than mode in this dataset.

Share this question

Discussion

Comments

0 comments

Please log in to join the discussion.

No comments yet. Be the first to start the discussion.

Related blogs

Guides and insights connected to this topic

Class IX Science 14 Sep 2026

Journey Inside the Atom Notes - Atomic Structure, Bohr Model and Electronic Configuration

Explore the fundamentals of atoms, from ancient ideas to Dalton's theory, Bohr's model, and electronic configuration in clear notes.

Class IX Science 13 Sep 2026

Exploration Notes - Scientific Models, Laws, Theories, Estimates and Interdisciplinary Science

Learn how scientists turn observations into measurements, use symbols, build models, and revise ideas in physics, chemistry, biology and earth science.

Class X Science 12 Sep 2026

Periodic Classification of Elements Notes - Dobereiner Triads, Newlands Octaves, Mendeleev and Modern Periodic Table

Explore early attempts to classify elements, covering Dobereiner’s triads, Newlands’ law of octaves and Mendeleev’s table with examples and key details.