Recently published items - Numbas at mathcentre.ac.uk

ANOVA - true/false

Question by

Mario Orsi and 2 others

True/false question type to assess knowledge of basic aspects of ANOVA.

Published on 01/02/2021 16:40 CC BY-SA

Confidence interval for variance

Question by

Aamir Khan and 1 other

Finding the confidence interval at either 90%, 95% or 99% for the population variance of a sample. $\chi^2$ tables are used. A single scenario is given.

Published on 01/02/2021 15:54 CC BY

Electric field from a point charge

Question by

Jon Goss

Simple numerical evaluation using a given formula.

Superposition of electric fields

Question by

Jon Goss

Evaluation of the vector superposition of fields arising from four point-charges. This is a problem of vector addition, vector magnitudes and scalar (dot) products with a bit of trigonometry thrown in for good measure.