Day 3: STA205 - Introduction to Statistical Methods

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• Announcements:
  • Reminder: please hide your rectangles.
  • Roll
  • You have an assignment due this week, Friday (these imath assignments -- on-line homework -- will be due by midnight).

    I checked on imath last night, and 58 of 70 have signed up. Time's a wastin'! What are you waiting for?

    There are 12 of you who are at risk of being labelled "slackers"....

  • This week, Thursday, you'll have your first short quiz at the end of the class. It will cover packet 1.

• Today:
  • First we'll finish up with Packet 1: the normal distribution. We still need to learn to use that normal table backwards.

  • Then we'll get to Packet 2: Definitions, and Summarizing Categorical Data
    • If you don't have your Packet, just take out some paper and make notes that you can use to transfer to your packet when you DO get it printed out.

• Links:

  • When videos are referenced in the notes, consult Brooke's collection of on-line videos for the appropriate one.

  • We will need the Standard Normal Table of probabilities for some of our work today.

  • Statcrunch instructions for packet 2 (and IMath homework):
    • Load the Stop and Frisk Data for packet 2. Load it by "WWW address", and make sure to set the delimiter to "comma" (because this is a "csv" (comma-separated values) file).
    • Once the data is loaded, click on "Graph" or "Table".
    • Alternatively, you may want to join my "group" on Statcrunch. That way you can access the data more quickly. It's Sta205-Long, if you want to add yourself into that group.