3. Workplace Ergonomics

Anthropometry — Quiz

Test your understanding of anthropometry with 5 practice questions.

Practice Questions

Question 1

Using Chebyshev's inequality, for a body dimension with mean μ=800\,mm and variance σ^2=900\,mm^2, what minimum proportion of the population falls within ±3σ of the mean?

Question 2

A designer wants to specify a seat width to accommodate 97.5\% of a population whose hip breadth is normally distributed with mean μ=460\,mm and standard deviation σ=30\,mm, adding 20\,mm of clearance on each side. What total seat width is required?

Question 3

If two anthropometric variables are independent and the design accommodates each up to its 90th percentile, what percentage of the population will be accommodated on both dimensions?

Question 4

What is a primary advantage of applying principal component analysis (PCA) to a large anthropometric dataset?

Question 5

Boundary ratio constants improve on traditional proportionality approach by which key feature?