718 results for "random".
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Question in How-tos
This shows how to define a list of LaTeX strings, and pick a couple of them at random to display.
The "JSON data" type is used to define the available strings, so they're automatically marked as "safe" and curly braces aren't interpreted as variable substitution.
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Question in How-tos
This question shows how to generate a random set of $(x,y)$ samples, where $y = mx + c + \mathrm{noise}$.
The JSXGraph extension is used to show a scatter plot of the data. This isn't necessary if you just want to generate the data.
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Exam (1 question) in How-tos
There's one question, which you have to get right 5 times in a row. If you get it wrong, you have to start again.
This makes more sense if the question is randomised!
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Question in How-tos
A random proper fraction $a/b$ with denominator in the range 2 to 30 is picked, and the student must write $\frac{a}{b} \pi$.
The point of this question is to demonstrate that the correct answer is shown as a multiple of $\pi$ rather than a decimal.
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Question in HELM books
Given f(x)=1/(a-x)^2, evaluate f(x/z) where a is a randomised constant, and z is a randomised letter.
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Question in HELM books
Give f(x)=ax^2+b a simple function input (like 6x-3) and evaluate. Constants and variables, and the function input are all randomised.
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Question in HELM books
evaluate a function with randomised alphanumeric expressions as inputs.
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Question in HELM books
Evaluate a given, randomised, linear function at a given, randomised, value.
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Question in HELM books
Student is shown a simple (randomised) function and asked to describe its behaviour. This is an information only question. Students need to view the advice to check their answer.
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Question in HELM books
Two functions given in words. Write down the function definition. The numbers in the function definitions are randomised.
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Question in HELM books
A difficult question that involves rearranging a complicated formula, then applying unit conversions to variable values, then evaluating the formula for the selected value. The variable values are randomised.
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Question in HELM books
Rearrange a complex formula involving squares, square roots, fractions and additions. This is a fixed question with no randomisation.
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Question in HELM books
Rearrange a linear function in x and y to make y the subject. Line variables are randomised.
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Question in HELM books
Transpose PV=RT to make a random variable the subject.
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Question in HELM books
Convert a random number of cubic metres into cubic centimetres
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Question in HELM books
Convert a random value in square metres to square centimetres.
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Question in HELM books
Evaluate J = (1/2)Ma^2 for random values of M and a.
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Question in HELM books
convert a random length in m to centimetres
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Question in HELM books
evaluate a function (4a)/(pi*b^2cd) given random values for a,b,c,d.
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Question in HELM books
evaluate sqrt(x/z) where x and z are random positive decimals.
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Question in HELM books
There are two parts:
(3x)/4-x/5+x/3 and (3x/4)-(x/5+x/3).
The numbers are randomised to small, coprime, positive integers.
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Question in HELM books
Add (a/b).x +/- (c/d) where a,b,c,d are randomised positive integers, and x is a randomised letter.
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Question in HELM books
Simplify (qx+a)/(rx+b) +/- (sx+c)/(rx+b)^2
x is a randomised variable. a,b,c,d,q,r are randomised integers.
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Question in HELM books
Simplify (qx+a)/(rx+b) +/- (sx+c)/(tx+d)
x is a randomised variable. a,b,c,d,q,r,s,t are randomised integers. a,b,c,d run from -5 to 5, including 0. q,r,s,t run from -3 to 3, and can be 0 if the constant term is nonzero, but are mostly 1.
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Question in HELM books
Simplify ax/b +/- cx/d, where x is a randomised variable, and a,b,c,d are randomised integers.
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Question in pre-algebra Numeracy and Arithmetic
Round random numbers to the closest whole number, 1, 2 or 3 decimals places.
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Question in Engineering Statics
Three random forces act on a particle. Determine the force required for equilibirum.
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Question in Engineering Statics
Determine the resultant of three random 2-D vectors.
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Question in Foundation Maths
This uses an embedded Geogebra graph of a sine curve $y=a\sin (bx+c)+d$ with random coefficients set by NUMBAS.
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Question in Engineering Statics
Solve a random oblique triangle for sides and angles.