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? |