264 results for "mean".
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Question in STAT8013 Chemometrics
Compute a 95% confidence interval for the population mean given a small sample, and compare it with a confidence interval for a different population.
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Question in MESH
Students are shown a normal distribution, and a slider that moves the distribution horizontally. They are asked to move it so that the mean is equal to a particular value.
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Question in MESH
A normal curve is displayed. Mean and standard deviation can be set by sliders.
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Question in MASH Bath: Question Bank
Calculate 95% CI given, mean, sd and sample size.
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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 MASH Bath: Question Bank
Statistical notation including mean, standard deviation, probability, correlation coefficient, chi-square and others.
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Question in MASH Bath: Question Bank
Mean, median and mode from a grouped table. Context social science.
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Question in Yvonne's workspace
Topics covered are calculating the mean, median, mode and standard deviation.
rebelmaths
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Question in Standard Maths
Students are shown a graph of the value of a machine over time. The line equation is randomised.
They are asked to evaluate value at a given time, and the time at which a given value is reached. They are asked when the machine has no value, and the range of times over which the model is valid. They are also asked to explain the physical meaning of the gradient.
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Question in Mash's workspace
No description given
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Question in Paul's workspace
Topics covered are calculating the mean, median, mode and standard deviation.
rebelmaths
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Question in Content created by Newcastle University
Find $\displaystyle \int \frac{2ax + b}{ax ^ 2 + bx + c}\;dx$
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Question in Andrew's workspace
Solving a system of three linear equations in 3 unknowns using Gaussian Elimination (or Gauss-Jordan algorithm) in 5 stages. Solutions are all integers. Introductory question where the numbers come out quite nice with not much dividing. Set-up is meant for formative assessment. Adapated from a question copied from Newcastle.
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Question in Andrew's workspace
Solving a system of three linear equations in 3 unknowns using Gaussian Elimination (or Gauss-Jordan algorithm) in 5 stages. Solutions are all integers. Introductory question where the numbers come out quite nice with not much dividing. Set-up is meant for formative assessment. Adapated from a question copied from Newcastle.
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Question in MXB241 Weekly Quizzes
No description given
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Question in MXB241 Weekly Quizzes
No description given
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Question in MXB241 Weekly Quizzes
No description given
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Question in Mash's workspace
This question will test the ability of test taker to distinguish between solving mean and solving weighted mean problem
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Question in Glasgow Numbas Question Pool
Calculate the distance between two points along the surface of a sphere using the cosine rule of spherical trigonometry. Context is two places on the surface of the Earth, using latitude and longitude.
The question is randomised so that the numerical values for Latitude for A and B will be positive and different (10-25 and 40-70 degrees). As will the values for Longitude (5-25 and 50-75). The question statement specifies both points are North in latitude, but one East and one West longitude, This means that students need to deal with angles across the prime meridian, but not the equator.
Students first calculate the side of the spherical triangle in degrees, then in part b they convert the degrees to kilometers. Part a will be marked as correct if in the range true answer +-1degree, as long as the answer is given to 4 decimal places. This allows for students to make the mistake of rounding too much during the calculation steps.
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Question in Julia Goedecke's contributions
Educational calculation tool rather than "question".
This allows the student to input a linear system in augmented matrix form (max rows 5, but any number of variables). Then the student can decide to swap some rows, or multiply some rows, or add multiples of one row to other rows. The student only has to input what operation should be performed, and this is automatically applied to the system. This question has no marks and no feedback as it's just meant as a "calculator".
It has some rounding to 13 decimal places, as otherwise some fraction calculations become incorrectly displayed as a very small number instead of 0.
It would be possible to extend to more than 5 rows, one just has to put in a lot more variables and so on. I just had to choose some place to stop.
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Question in Julia Goedecke's contributions
Educational calculation tool rather than "question".
This allows the student to input a square matrix (max rows 5). Then the student can decide to swap some rows, or multiply some rows, or add multiples of one row to other rows. The student only has to input what operation should be performed, and this is automatically applied to the matrix and the identity matrix (or what it has got to). This question has no marks and no feedback as it's just meant as a "calculator". It has some checks in so students know when they are not entering a square matrix or a valid row number etc.
It has some rounding to 13 decimal places, as otherwise some fraction calculations become incorrectly displayed as a very small number instead of 0.
It would be possible to extend to more than 5 rows, one just has to put in a lot more variables and so on. I just had to choose some place to stop.
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Question in Ugur's workspace
Topics covered are calculating the mean, median, mode and standard deviation.
rebelmaths
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Question in Linear Algebra 1st year
This allows the student to input a linear system in augmented matrix form (max rows 5, but any number of variables). Then the student can decide to swap some rows, or multiply some rows, or add multiples of one row to other rows. The student only has to input what operation should be performed, and this is automatically applied to the system. This question has no marks and no feedback as it's just meant as a "calculator".
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Question in Ugur's workspace
Topics covered are calculating the mean, median, mode and standard deviation.
rebelmaths
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Question in Ugur's workspace
Topics covered are calculating the mean, median, mode.
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Question in Assessment Exercises
Just showing how to use the stdev function from the stats extension to calculate the standard deviation of a list of numbers.
rebelmaths
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Question in Assessment Exercises
Just showing how to use the stdev function from the stats extension to calculate the standard deviation of a list of numbers.
rebelmaths
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Question in .Statistics
Given a table of data, calculate the mean, mode and median, and complete a frequency table.
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Michael's copy of Harry's copy of Measures of central tendency and spread-original without context DraftExam (4 questions) in .Statistics
Calculate and work with measures of central tendency such as mean, median and mode, and measures of spread such as range and standard deviation.