505 results for "linear".

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Solving 1 linear and 1 quadratic simultaneous equations
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Quiz 10
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Linear combinations of $2 \times 2$ matrices. Three examples.

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Putting a pair of linear equations into matrix notation and then solving by finding the inverse of the coefficient matrix.

• Question in Stats

Conduct a linear regression analysis using a spreadsheet or stats program.

• Question in Stats

True/false question type to assess knowledge of the basics of linear correlation and regression.

• Question

No description given

• Exam (15 questions)
Plot linear functions and identify key characteristics.
• Question

Given a linear programming problem in standard form, write down the dual problem.

• Adding linear combinations of  polynomials over $\mathbb{Z}_3,\;\mathbb{Z}_5,\;\mathbb{Z}_7$

• Cartesian equation of a plane
Has some problems

A plane goes through three given non-collinear points in 3-space. Find the Cartesian equation of the plane in the form $ax+by+cz=d$.

There is a problem in that this equation can be multiplied by a constant and be correct. Perhaps d can be given as this makes a,b and c unique and the method of the question will give the correct solution.

• Given a generating matrix for a binary linear code, construct a parity check matrix, list all the codewords, list all the words in a given coset, give coset leaders, calculate syndromes for each coset, correct a codeword with one error.

• Given a generating matrix for a linear code, give a parity check matrix

• Question

Three 3 dim vectors, one with a parameter $\lambda$ in the third coordinate. Find value of $\lambda$ ensuring vectors coplanar. Scalar triple product.

• Question

A multiple linear regression model of the form:

$Y=\beta_0+\beta_1X_1+ \beta_2X_2+\beta_3X_3+\beta_4X_4+\epsilon$

is fitted to some data in Minitab which generates a table showing estimates of the parameters with associated $p$-values. Determine which variable to exclude first.

• Exam (1 question)

Solve a system of linear equations using Gaussian elimination.

• Exam (2 questions)

Use the simplex method to solve a linear program.

• 20122013 CBA0_2
Question

Given a linear combination $Y$ of three independent random variables with given means and variances, find the mean of variance of $Y$.

• Question

Find a regression equation.

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Approximating integral of a linear function by Riemann sums . Includes an interactive graph in Advice showing the approximations given by the upper and lower sums and how they vary as we increase the number of intervals.

• Question

Approximating integral of a linear function by Riemann sums . Includes an interactive graph in Advice showing the approximations given by the upper and lower sums and how they vary as we increase the number of intervals.

• Question

Find a regression equation.