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Do Now. Which of the above stats are: Nominal Ordinal Interval Ratio. Objectives. 28.January.2011 Students will be able to… Determine levels of measurements of data. Agenda. Do Now (5 min) Review Yesterday (5 min) Levels of Measurement (15 min) Pop Quiz (10 min) Exit Ticket (5 min).

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Do now

Do Now

  • Which of the above stats are:

    • Nominal

    • Ordinal

    • Interval

    • Ratio


Objectives

Objectives

  • 28.January.2011

  • Students will be able to…

    • Determine levels of measurements of data.


Agenda

Agenda

  • Do Now (5 min)

  • Review Yesterday (5 min)

  • Levels of Measurement (15 min)

  • Pop Quiz (10 min)

  • Exit Ticket (5 min)


Yesterday

Yesterday

  • Qualitative vs. Quantitative

  • Discrete vs. Continuous.

  • Discrete vs. Discreet


Nominal

Nominal

  • Data consists of names, labels, or categories only that cannot be arranged.

  • Yes/No/Undecided

  • Colors

  • Names


Ordinal

Ordinal

  • Data that can be ordered, but the difference between the orders is meaningless.

  • Ranks of NBA Players for PPG

  • Course Grades


Interval

Interval

  • Data that can be ordered with the added property that the difference between two values is meaningful. But there is no zero or natural starting point.

  • Degrees Fahrenheit

  • Years


Ratio

Ratio

  • Data that can be ordered, subtracted, but also divided in a meaningful way, as well as having a natural zero starting point (or the concept of nothing.)

  • Number of eggs laid by a chicken

  • Price of a textbook

  • Heights of students


Levels of measurement

Levels of Measurement


Pop quiz

Pop Quiz

  • Very little pop.


Exit ticket

Exit Ticket

  • Based on a study of heights of men and women who play basketball, a researcher concludes that the exercise from playing basketball causes people to grow taller. Can you think of an alternative conclusion to this?


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