KhanAcademyExercises

Practice determining if a statistic is an unbiased estimator of some population parameter.

Practice using the central limit theorem to describe the shape of the sampling distribution of a sample mean.

Test your knowledge of disruptions to ecosystems!

Use unit fractions to think about the location of other fractions on the number line.

Compare two fractions that have either the same numerator or denominator.  

Given the graph of a function, find ways to restrict its domain in order to make it invertible.

Practice and gain better understanding of the money supply and the purpose of money.

Name angles by their vertex, endpoints, or labels.  

Practice computing line integrals in conservative vector fields with the fundamental theorem of line integrals.

Compute partial derivatives. Practice ignoring certain variables when taking the derivative.

Given the graph of a real-world relationship, determine whether the labels and scales of the graph's axes are appropriate.

Practice comparing distributions that are presented in dot plots, histograms, and box plots.

Solve word problems that involve real-world contexts that are modeled by sinusoidal functions.

Solve equations of the form a*sin(bx+c)=d or a*cos(bx+c)=d where a, b, c, and d are any number.

Solve word problems that involve general (non-right) triangles using the law of sines and law of cosines.

Find the trigonometric values of various angles that (while they are not special angles) can be expressed as the sum or difference of special angles and vice versa.

Solve a word problem to find the duration of an event.  Both analog or digital clocks are included.

Practice telling time using analog clocks. Some clocks do not have labels.