Do Now

Which of the above stats are: Nominal Ordinal Interval Ratio

Season

Age Tm Lg G

S FG FGA FG% PTS PP

GRan

k

2010-11

22 OKC NBA 4138

7830 .466

1171

28.6 1

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)

Yesterday

Qualitative vs. Quantitative

Discrete vs. Continuous.

Discrete vs. Discreet

Nominal

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

Yes/No/Undecided Colors Names

Ordinal

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

Ranks of NBA Players for PPG Course Grades

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

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

N O I RCan be named

Can be ordered

Can be subtracted

Has concept of 0

Can be divided

Pop Quiz

Very little pop.

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?