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.

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.

Student ma za zadanie zbudować szereg rozdzielczy, obliczyć średnią i odchylenie standardowe, określić kierunek asymetrii oraz koncentrację rozkładu.

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Calculate confidence interval for the mean, sample variance adaptive marking

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.

Compute a 95% confidence interval for the population mean given a small sample, and compare it with a confidence interval for a different population.

Two ordered data sets, each with 10 numbers. Find the sample standard deviation for each and for their sum.

A normal curve is displayed. Mean and standard deviation can be set by sliders.

One number as a percentage of another.  Biology context. Includes standard form.
Realistic values.

Convert numbers between 0 and 1 from standard form/scientific notation.

Convert numbers greater than 1 from standard form/scientific notation.

Convert numbers greater than 1 into standard form/scientific notation.

Convert numbers between 0 and 1 intro standard form/scientific notation.

Notation for mean and standard deviation of population and sample.

Statistical notation including mean, standard deviation, probability, correlation coefficient, chi-square and others.

Just showing how to use the stdev function from the stats extension to calculate the standard deviation of a list of numbers.

Topics: Trigonometeric equations and complex numbers
Students must complete the exam within 90 mins (standard time).
Questions have variables to produce randomised questions.

Differentiate $f(x) = ax^m$.

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Questions asking for the factoring of simple case (a=1)

These first need to be changed to standard form.

Then use factors to solve.

Questions asking for the factoring of simple case (a=1)

These first need to be changed to standard form.

Two ordered data sets, each with 10 numbers. Find the sample standard deviation for each and for their sum.

Just showing how to use the stdev function from the stats extension to calculate the standard deviation of a list of numbers.

rebelmaths

Just showing how to use the stdev function from the stats extension to calculate the standard deviation of a list of numbers.

rebelmaths