**Discussion Topic**

A. If a data set has negative number, can you get a negative standard deviation? Yes or No. If yes give me an example.

B. Z-score: Come up with any questions you have about z-score or chapter 5 in general ?

**Chose either A or B for this week discussion.**

**At Least 175 words.**

Course MaterialsRequired Text or E-Book: Gravetter, F.J., Wallnau, L.B (2017). Essentials of Statisticsfor Behavioral Sciences, (10th edition). Custom for Monroe College. Boston, MA:Cengage Learning

**Measure of Variability ( Step by Step):**

__Calculating The Range, Standard Deviation, and Variance__

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**By TI-30 XS Multiview**

__How to find Mean, Median, and Standard Deviation (via TI-30XS Multiview)__

**By TI-83/84**

__How to find Mean, Median, and Standard Deviation (via TI-83/84)__

**By TI-34**

__How to find Mean, Median, and Standard Deviation (via TI-30XS, TI-34, TI-30XS Pro, or TI-30 XS Plus)__

**Measure of variation By Excel:**

__1. Calculating Standard Deviation By Excel__

__2. Calculating Variance By Excel__

__3. Calculate Mean, Median, Mode, Range, Standard Deviation, Variance By Excel__