1. Name: _____________ Date: __________
Using Statistics to Predict – Graded Assignment (36 points)
Directions: Apply the data/table you collected yesterday to answer each
question/part below. You must show all work and complete every question
to receive full credit. Please remember to simplify fractions and ratios.
Survey Question:______________________________________________
_____________________________________________________________
Sample Size: ___________
1. Choose one category (“choice) from your data. What fraction of your
sample is represented in this category?
Category used: ___________________
Answer:
2. Write a ratio comparing two of your categories (choices) in words and
then in numbers (data).
Words: ___________________
Data: ____________________
3. There are 582 students at CMS. Write and ANSWER a question that
uses your statistics to predict the number of students that would be
represented at CMS (you must use a proportion when showing your work.)
Question: ____________________________________________________
____________________________________________________________
Answer:
(continued on back)

2. 4. There are 15,569 residents in Cinnaminson. Write and ANSWER a
question that uses your statistics to predict the number of residents that
would be represented in Cinnaminson (you must use a proportion when
showing your work.)
Question: __________________________________________________
___________________________________________________________
Answer:
5. Reflect back on Questions 3 and 4. Do you believe that these numbers
would be accurate if we actually polled ALL of CMS and ALL of
Cinnaminson? Why or why not? EXPLAIN YOUR REASONING.
___________________________________________________________
___________________________________________________________
___________________________________________________________
___________________________________________________________
___________________________________________________________
6. Go to: http://illuminations.nctm.org/ActivityDetail.aspx?ID=204 aka
the Illuminations Data Grapher provided by NCTM. Create and PRINT
OUT** a bar graph that represents the data from your survey. The link to
the grapher can also be found on our website: zmath.edublogs.org
Write your name on the back of the graph and DO NOT staple to this
paper. Simply hand it in with this worksheet, these graphs will be
displayed in our room.
**If you cannot get to a computer Friday, Saturday, or Sunday (Cinn.
library is open) you must hand draw a bar graph on graph paper using
colored pencils or crayons. The graph must take up the whole page**