22 results.
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Question in Graphing and Polynomials
No description given
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Question in Content created by Newcastle University
Given normal distribution $\operatorname{N}(m,\sigma^2)$ find $P(a \lt X \lt b),\; a \lt m,\;b \gt m$ and also find the value of $X$ corresponding to a given percentile $p$%.
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Question in LSE MA103 Intro Abstract Maths
Create a truth table with 3 logic variables to see if two logic expressions are equivalent.
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Question in Engineering Statics
Use a table of properties to find the Area Moment of inertia for simple shapes: rectangle, triangle, circle, semicircle, and quarter circle.
The parallel axis theorem is not required for any of these shapes. One situation requires subtracting a triangle from a rectangle however.
Distinguish between centroidal and non-centroidal moments of inertia.
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Question in Transition to university
Given a table of data, calculate the mean, mode and median, and complete a frequency table.
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Question in Bill's workspace
Asking users to input coefficients of a system of diff equations so that the phase space is a centre. All systems input by the user are graphed together with immediate feedback. Also included in the Steps are the graphs of the solutions for $x(t),\; y(t);\; x(0)=-5,\;y(0)=5.$
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Question in Bill's workspace
Nature of fixed points of a 2D dynamical system.
These examples are either centres or spirals.
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Question in Bill's workspace
Asking users to input coefficients of a system of diff equations so that the phase space is a centre. All systems input by the user are graphed together with immediate feedback. Also included in the Steps are the graphs of the solutions for $x(t),\; y(t);\; x(0)=-5,\;y(0)=5.$
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Question in Bill's workspace
Asking users to input coefficients of a system of diff equations so that the phase space is a stable spiral. All systems input by the user are graphed together with immediate feedback. Also included in the Steps are the graphs of the solutions for $x(t),\; y(t);\; x(0)=-5,\;y(0)=5.$
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Question in Bill's workspace
Asking users to input coefficients of a system of diff equations so that the phase space is a saddle. All systems input by the user are graphed together with immediate feedback. Also included in the Steps are the graphs of the solutions for $x(t),\; y(t);\; x(0)=-5,\;y(0)=5.$
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Question in Bill's workspace
Given a random variable $X$ normally distributed as $\operatorname{N}(m,\sigma^2)$ find probabilities $P(X \gt a),\; a \gt m;\;\;P(X \lt b),\;b \lt m$.
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Question in Content created by Newcastle University
For a sample of size n from a normal distribution, given mean of the sample mean and the standard deviation , find the t-statistic corresponding to a null hypothesis $\mu=m$ and a given confidence level. Check if the result is significant at this level.
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Question in Content created by Newcastle University
Looking up t-tables.
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Question in Content created by Newcastle University
Looking up t-tables.
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Question in Content created by Newcastle University
Provided with information on a sample with sample mean and standard deviation, but no information on the population variance, use the t test to either accept or reject a given null hypothesis.
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Question in Content created by Newcastle University
Given a random variable $X$ normally distributed as $\operatorname{N}(m,\sigma^2)$ find probabilities $P(X \gt a),\; a \gt m;\;\;P(X \lt b),\;b \lt m$.
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Question in Content created by Newcastle University
Given a normal distribution $X \sim N(m,\sigma^2)$ find $P(X \lt a),\; a \lt m$ and the conditional probability $P(X \gt b | X \gt c)$ where $b \lt m$ and $c \gt m$.
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Question in Content created by Newcastle University
Given two sets of data, sample mean and sample standard deviation, on performance on the same task, make a decision as to whether or not the mean times differ. Population variance not given, so the t test has to be used in conjunction with the pooled sample standard deviation.
Link to use of t tables and p-values in Show steps.
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Question in Transition to university
Present some given data in a frequency table.
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Question in Julie's workspace
Basic data structures and maths/stats functionality given.
You can configure the rest.
rebelmaths
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Question in Julie's workspace
rebelmaths
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Question in Numerical reasoning
Following part 2, "Questions on Data Tables", from the Maths Aid workbook "Numerical reasoning tests".
Only doing the first 4 questions because the others involve trends that need lots more thinking about how to randomise.
Not finished!