5597 results.
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Question in Skills Audits for Maths and Stats
Simplifying expressions from $\frac{x^mx^n}{x^p}$ to $x^{m+n-p}$.
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Question in Skills Audits for Maths and Stats
Calculate the change from a note given two costs.
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Question in Demos
Demonstrates how to display a plot generated in R.
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Question in NCL MAS1701
No description given
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Question in CHY1201 - SpectroscopyThe reduced masses are pre-calculated for this question and included in a list. It would be more elegant to program Numbas to permute atoms together to generate diatomic molecules while constraining the permutations to those which are chemically/physically reasonable, so as to allow calculation of each reduced mass directly from the atomic masses- but organising this with high computational efficiency might be a significant programing task (add to "to do" list).
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The number of patients arriving at a dentist’s surgery each afternoon follows
a Poisson distribution, with a mean of four patients per hour.
Calculate the probability that in a particular one-hour period -
Question in Discrete Mathematics
Asks students to apply laws of logical equivalence to prove the equivalence between two logical statements. The quiz should accept any correct answer (as long as each step is included, with one law per step), and provides detailed feedback on mistakes.
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Question in Julie's workspace
Application of the Poisson distribution given expected number of events per interval.
Finding probabilities using the Poisson distribution.
rebelmaths
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Question in Brendan's workspace
Integration by parts.
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Question in CHY1201 - Spectroscopy
No description given
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Question in Ugur's workspace
moment of inertia - cylinder
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Question in CHY1201 - Spectroscopy
No description given
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Question in Ugur's workspace
Double integral in polar coordinates - concentric circles
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Question in David's workspace
An economic dispatch problem with three generators. The steps help the students to solve this using lagrangian multipliers. This question is designed to allow students studying economic dispatch to practice solving the problem.
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Question in Ugur's workspace
moment of inertia - cylinder
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Question in Julie's workspace
Given a random variable $X$ normally distributed as $\operatorname{N}(m,\sigma^2)$ find probabilities $P(X \gt a),\; a \gt m;\;\;P(X \lt b),\;b \lt m$.
rebelmaths
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Exam (9 questions) in Ugur's workspace
set of exercises on double and triple integrals
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Question in Ugur's workspace
mass of tetrahedron via integration
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Question in MESH
convert large numbers to scientific notation
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Question in MESH
NC NA Non-calculator and Number and Algebra strand. This number assesses students' ability to add and subtract very simple fractions. Students need two add two fractions (possibly mixed numbers) involving quarters and/or halves, then subtract their answer from a whole number. The answer must be entered in simplest form and will always be less than one.
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Question in MESH
Convert between improper fractions and mixed numerals
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Question in MESH
Several problems involving dividing fractions, with increasingly difficult examples, including mixed numbers and complex fractions.
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Question in MESH
This question tests the student's ability to identify equivalent fractions through spotting a fraction which is not equivalent amongst a list of otherwise equivalent fractions. It also tests the students ability to convert mixed numbers into their equivalent improper fractions. It then does the reverse and tests their ability to convert an improper fraction into an equivalent mixed number.
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Question in MESH
Add, subtract, multiply of divide two mixed numbers. This question has no advice at this stage.
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Question in MESH
Several problems involving dividing fractions, with increasingly difficult examples, including mixed numbers and complex fractions.
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Question in MESH
Area and perimeter of rectangles
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Question in MESH
Area and circumference of circles
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Question in MESH
Area and perimeter of triangles.
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Question in Demos
The student is shown a plot of a mystery function. They can enter values of $x$ check, within the bounds of the plot.
They're asked to give the formula for the function, and then asked for its value at a very large value of $x$.
A plot of the student's function updates automatically as they type. Adaptive marking is used for the final part to award credit if the student gives the right value for their incorrect function.
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Exam (20 questions) in Demos
Some questions to show off features of Numbas, linked from the Numbas homepage.