Report

All about graphs Graphs in general Bar graphs and Histograms Line graphs Circle graphs 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5 collection of information Data A graph that shows data by using picture symbols Pictograph Census Sample Mode Bar graph Histogram Frequency Bar graph Type of graph that would be appropriate to display the numbers of girls and the numbers of boys who use the playground each day for one week? Double bar graph Line graph Percentage of Students Who Are Left Handed 8.0% 7.0% 6.7% Percentage 6.0% 5.2% 5.0% 4.9% 4.0% 3.0% 2.0% 3.7% 2.5% 1.0% 0.0% 1960 1970 1980 1990 Year 2000 2010 2020 Between which two years was the greatest percent change in left handed students 2000-2010 Tem ˚C S M Tu W Th F S in two cities Toronto 14 15 14 13 12 13 14 in Oct Montreal 13 14 13 12 11 14 13 Graph that best represents this data Double line graph True Time scale e.g. minutes, days, months or years Type of graph useful for comparing parts of a whole Circle graph Sarah would use this graph to show what part of her total allowance she spends on clothes, entertainment, books ,and other categories Circle graph Favorite Ice Cream Flavors 5% 5% 15% Vanilla C hocolate 50% Strawberry C ookie Dough Other 25% A local school survey indicated favorite ice cream flavours for the grade 8 students. According to the graph the favorite flavour Vanilla Favorite Ice Cream Flavors 5% 5% 15% Vanilla C hocolate 50% Strawberry C ookie Dough If 40 students like vanilla flavour the best, the number students surveyed Other 25% 80 students Favorite Colors 20% Blue 5% 50% Red Green Purple 25% Favorite colors of grade 8 students are shown in this circle graph. Ten students had red as their favorite color. Number of students surveyed 40