241 results for "sum".
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Question in MfEP Progress Quizzes
This question is an application of a quadratic equation. Student is given dimensions of a rectangular area, and an area of pavers that are available. They are asked to calculate the width of a border that can be paved around the given rectangle (assuming border is the same width on all 4 sides). The equation for the area of the border is given in terms of the unknown border width. Students need to recognise that only one solution of the quadratic gives a physically possible solution.
The dimensions of the rectangle, available area of tiles and type of space are randomised. Numeric variables are constructed so that resulting quadratic equation has one positive and one negative root.
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Question in Skills Audits for Maths and Stats
Basic calculation from a sum given in Sigma notation.
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Question in Skills Audits for Maths and Stats
Simplify the sum of two algebraic fractions where spotting factorising of both numerators and denominators can reduce the work massively.
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Question in CHY1201 - SpectroscopyQuestion requires students to themselves calculate how many electrons are in the conjugated system for the molecules included in this question. As is standard for applications of the "particle in a box" model, the embedded assumption is that one electron is donated to the pi-system by each carbon within the conjugated chain. Students instructed to assume that there are 22 conjugated electrons in Beta-carotene.
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Question in Engineering Statics
Add three vectors by determining their scalar components, summing them and then resolving the rectangular components to find the magnitude and direction of the resultant
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Question in Engineering Statics
Add three vectors by determining their scalar components, summing them and then resolving the rectangular components to find the magnitude and direction of the resultant.
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Question in Learning, Debugging, Testing etc.
Shows different ways to load a geogebra applet.
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Exam (1 question) in Learning, Debugging, Testing etc.
Different methods of loading a geogebra applet.
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Question in HELM books
Simplify (a) a fully-factorised fraction with common factors, and (b) a fraction where the numerator is a product and the denominator a sum sharing the same variables (that cannot be simplified). The variables are randomised. Part of HELM book 1.4
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Question in Newcastle University Sports Science
Given 32 datapoints in a table find their minimum, lower quartile, median, upper quartile, and maximum.
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Question in Maura's workspace
Asks students to add and multiply two integers modulo another integer. The modulus is a random number between 30 and 70, the summands are set to be large enough that modular reduction will be necessary.
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Question in MATH6059
Two ordered data sets, each with 10 numbers. Find the sample standard deviation for each and for their sum.
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Question in MASH Bath: Question Bank
Rewiting expressions involving sums or differences of surds into the form $a \sqrt{b}$.
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Question in MASH Bath: Question Bank
Rewiting expressions involving sums or differences of surds into the form $a \sqrt{b}$.
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Question in HELM books
Compute the modulus of either (a) a signed decimal, or (b) a sum or difference of two decimals.
Used in HELM Book 1.1.5 Exercises
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Question in Musa's workspace
Addition, subtraction and multiplication by a scalar for 2 x 2 matrices.
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Exam (4 questions) in Transition to university
Some questions of relevance to consumers.
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Question in Programming extension
Asks the student to calculate the sum of the triangular numbers (up to some randomised number).
Steps guide the student through each step in the calculation.
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Question in Christian's workspace
A Eukleides diagram showing a list of numbers, each in their own box, with the sum drawn above.
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Question in Christian's workspace
A Eukleides diagram showing a list of numbers, each in their own box, with the sum drawn above.
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Exam (4 questions) in .Differential Calculus
Fairly simple questions using differentiation "power rule" and "sum or difference rules" to differentiate single term functions and polynomials.
Some co-efficients and indices can be negative and/or fractional.
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Question in Stats
This question assesses the learner's ability of calculating confidence intervals for numerical data and conducting a one-sample t-test.
Randomized input values: sample summary statistics and confidence level.
Adapted from question 7.12 in OpenIntro Statistics (4th ed).
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Question in Ableiten und Aufleiten
Es werden die grundlegenden Ableitungsregeln geübt.
Die Reihenfolge der Summanden ist auch randomisiert.
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Question in Ableiten und Aufleiten
Es werden grundlegenden Ableitungsregeln geübt.
Die Reihenfolge der Summanden ist auch randomisiert.
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Question in STAT7009 Inferential Statistics
Two ordered data sets, each with 10 numbers. Find the sample standard deviation for each and for their sum.
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Question in Torris's workspace
No description given
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Question in MASH Bath: Question Bank
Calculate P(A u B) given P(A), P(B) and intersection.
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Question in MASH Bath: Question Bank
Notation for mean and standard deviation of population and sample.
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Question in MASH Bath: Question Bank
Mean and median from a basic list of integers.
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Question in school maths
Given a regular n-gon, students are asked for the sum of external angles, sum of internal angles, and the values of the external and internal angles.