Use http://www.mathsisfun.com/definitions/index.html or any other online resources to answer the following questions.
1. a. What is a CENSUS?
b. What are 2 advantages and 2 disadvantages of doing a CENSUS?
2. a. What is a REPRESENTATIVE SAMPLE?
b. What does SAMPLE SIZE mean?
3. a. What is a HISTOGRAM? Why are they used?
b. How are histogram different from Bar Graphs?
c. What does an "interval" or "range" mean when we talk about histograms?
d. Cut and paste 2 or more histograms below.
4. a. What is a SCATTER PLOT? Why are they used?
b. Cut and past two or more scatterplots that show a "positive correlation"
c. Cut and paste two or more scatterplots that show a "negative correlation"
d. Cut and paste two or more graphs that show no correlation.
5.a. When should you use a BAR GRAPH to show data?
b. When should you use a LINE GRAPH to show data?
c. When should you use a PIE GRAPH to show data?
d. Cut and paste an image of each type of graph above.
CHALLENGE - 6. BOX AND WHISKER PLOTS - What are they? What do they show? Copy 3 or more images.
