Title Description
Modulo operator Practice using the modulo operator
Introduction to the parenthesis Parentheses are used to set off extra information from a sentence, show an interruption, or indicate a reference. Practice identifying their uses in this exercise!
Irregular plural nouns review Learn the plurals of some everyday irregular nouns!
Solving quadratics by taking square roots: with steps Give a detailed solution of quadratic equations.
Use Pythagorean theorem to find area and perimeter Find the area and perimeter of triangles and quadrilaterals by first using the Pythagorean Theorem to find missing side lengths.
Skill check: Partial derivatives and the gradient Test your knowledge of partial derivatives
Chi-square tests for two-way tables For example, given a context, are the results of a chi-square test valid?
Skill check: Mean value theorem, L'Hopital, and local linearization Test your understanding of a few key theorems in differential calculus
One sample intervals for proportions For example, interpret a 2% margin of error.
One sample intervals for means For example, given a context, is it okay to construct a 95% confidence interval?
One sample tests for proportions For example, given a context, what is the meaning of Type 1 error?
Skill check: Optimization Check your understanding of relative minima, maxima, concavity and optimization problems
Regression slope intervals For example, are the conditions for a regression slope confidence interval met?
Sampling distributions For example, find the mean and standard deviation of 100 randomly selected babies from a population normally distributed with a mean of 7.5 pounds and standard deviation of 1.25 pounds.
Scatterplots & correlation For example, match correlation coefficients to scatterplots.
Skill check: Defining the derivative Check your understanding of approximating, visualizing and interpreting the tangent line of a graph.
Density curves and the normal distribution For example, what is the area above z = 1.36 on on the standard normal distribution.
Transforming and combining random variables For example, find the variance of the difference between the running times of two students selected from a population with mean 8 minutes and standard deviation 50 seconds.
Two sample intervals for proportions For example, if a professor wants a 90% confidence interval with a margin of error no more than 0.08, how large should his sample be?
Two sample tests for means For example, when do you need to check sample distribution for skewness or outliers before running a two-sample test about the mean?