There are 12 quizzes but only 10 count toward your final grade. I drop the lowest two quiz scores.

Total points: **150**

Here are a few examples questions that are *similar* to ones you will see on quizzes. There is no penalty for guessing on quizzes! It behooves you to answer every question, even if you’re unsure of the answer. Be sure to choose the **best answer** from the choices given as occasionally there will be *multiple correct answers* but only one *best* answer.

The following is the equation for determining the standard error of the mean.

\[\sigma = \sqrt {\mu _2 }\]

Upon viewing the distribution in test scores, you notice it is *negatively skewed*. Does this mean most students scored poorly (ie, had low scores)?

a) no

b) yes

c) need more information

Given the following data set…

X | Y |
---|---|

3 | 4 |

5 | 4 |

4 | 7 |

8 | 13 |

15 | 2 |

What is the *mean* of Y?

a) 2

b) 4

c) 5

d) 6

e) Not possible to determine given data

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