Transcript Investigation 2_Types of Data

Investigation 2
Types of Data
Michelle Ballentine
Kendria Sutherlin
Verra Williams
Quote
It is a mathematical fact
that 50% of all doctors
graduate in the bottom of
their class.
~Unknown
POD
How many times can
you subtract 7 from
83? What is left
afterwards?
You can subtract it as many
times as you want, and it
leaves 76 every time.
OBJECTIVE
• To note the kind of data being
collected; that is categorical or
numerical
• To use bar graphs to display categorical
and numerical data
• To understand how measures of center
(median, mode) and spread (range)
relate to numerical and categorical data
Problem 2.1
•
From the graphs definitions you
formed by doing IMOW, complete the
following:
A. Write two questions that have categorical
data as answers.
B. Write two questions that have numerical data
as answers.
Journal Writing
• Problem 2.1 Follow-UP
– Is it possible to find the mode of a set of
categorical data? Explain your answer.
• THINK
PAIR
SHARE
Categorical
Numerical
HOMEWORK
ACE problems 1-8 page 26
What type of graph is it?
What type of graph is it?
What type of graph is it?
Classroom Activity
• Using animal crackers create the following:
1. Bar graph or line plot
2. Circle graph with the following: fraction, decimal & percent
Make sure you graph has the following elements:
Title, legend, labeled y-axis and x-axis
Materials: Poster board, glue, animal crackers
Problem 2.2
• Decide whether each question below can
be answered by using data from the
graphs the students created. If a
question can be answered, explain why
not and tell what additional information
you would need to answer the question.
A. Which graph show categorical data,
and which graph shows numerical data?
B. What is the total number of pets the
students have?
C. What is the greatest number of pets
that any student in the class has?
D. How many students are in the class?
E. How many students chose cats as their
favorite kind of pet?
F. How many cats do students have as pets?
G. What is the mode for the favorite kind of
pet?
H. What is the median number of pets
students have?
I. What is the range of the numbers of pets
students have?
J. Tomas is a student in this class. How many
pets does he have?
K. Do the girls have more pets than the boys?
Journal Writing
• Follow-Up 2.2
– Do you think the students surveyed live in a
city, the suburbs, or the country? Explain
your answer.
HOMEWORK
ACE Problems #’s: 9-14 pages 26-28
JOURNAL REFLECTIONS
Page 29 Problems 1-3
WORD WALL
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Mode
Range
Average (mean)
Measures of center
Median
Bar graph
Line plot
Categorical
numerical
ACOS
• Standard 1
• Standard 2
• Standard 10