266 results for "mean".
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Question in MfEP Progress Quizzes
Student needs to solve a quadratic equation to calculate time taken for a diver to hit the water after diving from a diving board. Height of the board and initial upward velocity of the diver are randomly generated values. student needs to know that surface of the water is height 0, and only positive root of quadratic has physical meaning. Question is set to always give one positieve and one negative root.
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Question in Skills Audits for Maths and Stats
Calculating the Mean from a basic list of integers.
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The number of patients arriving at a dentist’s surgery each afternoon follows
a Poisson distribution, with a mean of four patients per hour.
Calculate the probability that in a particular one-hour period -
Question in MESH
By powers of ten I mean a 1 followed by some 0s. The scientific notation questions will take care of the power of ten notation.
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Question in How-tos
This question shows how to use the question's JavaScript preamble to request data from an external source, and use that data in question variables.
Note that this means the question only works when the external source is available. Use this very carefully, and avoid it if you possibly can!
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Question in HELM books
"Explain what is meant by the argument of a function."
Unmarked: Answer: "The argument is the input."
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Exam (1 question) in Christian's workspace
This exam has a custom diagnostic algorithm which gives the progress as a rational value. At the moment, this means "NaN%" is displayed in the sidebar.
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Question in Mash's workspace
No description given
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Question in Bin
A measurement is performed multiple times for the same object, the student will
- calculate the mean result
- calculate the standard error on the mean
- write the mean±error to the correct precision as defined by the error written to 1 significant figure
Advice is provided including on performing the calculations in Python or spreedsheets together with further reading.
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Question in Yvonne's workspace
The number of patients arriving at a dentist’s surgery each afternoon follows
a Poisson distribution, with a mean of four patients per hour.
Calculate the probability that in a particular one-hour period -
Question in Yvonne's workspace
The number of patients arriving at a dentist’s surgery each afternoon follows
a Poisson distribution, with a mean of four patients per hour.
Calculate the probability that in a particular one-hour period -
Question in Content created by Newcastle University
Finding the confidence interval at either 90%, 95% or 99% for the mean given the mean and standard deviation of a sample. The population variance is not given and so the t test has to be used. Various scenarios are included.
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Question in Content created by Newcastle University
Finding the confidence interval at either 90%, 95% or 99% for the mean given the mean of a sample. The population variance is given and so the z values are used. Various scenarios are included.
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Question in Content created by Newcastle University
Finding the confidence interval at either 90%, 95% or 99% for the mean given the mean of a sample. The population variance is given and so the z values are used. Various scenarios are included.
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Question in MESH
This question provides a list of data to the student. They are asked to find the mean, median, mode and range.
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Question in MESH
This question ensures that students understand that the fraction line means divide. There are 3 versions of the question, for denominators 10, 100 and 1000.
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Question in MESH
Students are asked how many milliseconds in one second OR how many milligrams in one gram OR how many millimetres in one metre.
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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 MESH
The student is presented with a scenario then asked to select a sample size to investigate and the number of bins for a histogram of the data. Theoretical distributions of normal, uniform and lognormal distributions can be overlayed on the histogram. Student is asked to identify the most likely distribution and the mean of this distribution (within a +/-10% margin of error).
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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 Yvonne's workspace
Just showing how to use the stdev function from the stats extension to calculate the standard deviation of a list of numbers.
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Question in MESH
The student is presented with a scenario then asked to select a sample size to investigate and the number of bins for a histogram of the data. Theoretical distributions of normal, uniform and lognormal distributions can be overlayed on the histogram. Student is asked to identify the most likely distribution and the mean of this distribution (within a +/-10% margin of error).
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Question in MESH
Students are asked to move an x-axis slider representing standard deviation on a normal distribution to make the area between (mean - slider value) and (mean + slider value) equal to a certain percentage. The 3 possible percentages correspond to the mean plus or minus 1, 2 or 3 standard deviations.
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Question in MESH
Students are asked to move an x-axis slider on a normal distribution to make the area to the left of the slider equal to a certain percentage. The 6 possible percentages correspond to the mean plus or minus 1, 2 or 3 standard deviations.
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Question in Stats
This question assesses the learner's ability to compute a confidence interval for a difference of two means, given two samples.
Randomized variables: sample raw data and confidence level.
Adapted from section 7.3.1 in OpenIntro Statistics (4th ed).
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Question in Significance testing
No description given
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Question in STAT7009 Inferential Statistics
No description given
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Question in MATH6059
Calculate confidence interval for the mean, sample variance n>30
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Question in STAT7008
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 STAT7009 Inferential Statistics
Calculate confidence interval for the mean, sample variance adaptive marking