Review for Quiz: Bar Graph or Bar Chart Bar Graph Review 23 April 2017 Review for Quiz: Bar Graph or Bar Chart 9 Bar Graph Review.ppt

Bar Graph Review 23 April 2017 Review for Quiz #103: ___________ or __________ Our General Subject for this Quiz? 9 Bar Graph Review.ppt

What is a Bar Graph? A bar graph is a graph that Bar Graph Review 23 April 2017 What is a Bar Graph? A bar graph is a graph that __________________________________ ___________________________________ Categorical or Qualitative Quantitative or Numerical 9 Bar Graph Review.ppt

Bar Graph Review 23 April 2017 What is a Bar Graph? A bar graph is a graph that displays the frequency distribution of a categorical variable, showing values for each bar next to each other for easy comparison. Categorical or Qualitative Quantitative or Numerical 9 Bar Graph Review.ppt

What is the Bar Graph Advantage over Pie Charts? Bar Graph Review 23 April 2017 Bar Graphs Q & A What is the Bar Graph Advantage over Pie Charts? Bar Graphs are ____________________ _________________________________ How are Bar Graphs the Similar to Pie Charts? Both pie charts & bar graphs can display ___________________________________ How are Bar Graphs Different from Pie Charts? A bar graph can also compare______________ ____________________________________ Data does not have to be ____________________________________ Categorical or Qualitative Quantitative or Numerical 9 Bar Graph Review.ppt

Bar Graphs Q & A What is the Bar Graph Advantage over Pie Charts? Bar Graph Review 23 April 2017 Bar Graphs Q & A What is the Bar Graph Advantage over Pie Charts? Bar Graphs are easier to make & to read than pie charts. How are Bar Graphs Different from Pie Charts? Both pie charts & bar graphs can display the distribution of a categorical variable. A bar graph can also compare any set of quantities measured in the same units. Data does NOT have to be part of a whole. Categorical or Qualitative Quantitative or Numerical 9 Bar Graph Review.ppt

Type of Variables on a Bar Graph x-axis variable? Normally a ______________ Variable. y-axis variable? Normally, a ______________ Variable Then decide if the y-axis variable is _______ or _________.

Type of Variables on a Bar Graph x-axis variable? Normally a Categorical Variable. y-axis variable? Normally, a Quantitative Variable Then decide if the y-axis variable is Discrete or Continuous.

“Would The Bar Graph Make a Good Pie Chart?” If the answer is NO, you could write: No,__________________________________ ________________________________ OR No,________________________________ __________________________________ If the answer is YES, you could write: Yes,________________________________ _____________________________________

“Would The Bar Graph Make a Good Pie Chart?” If the answer is NO, you could write: No, because these values are comparative data only. OR No, because these values do NOT represent parts of the whole. If the answer is YES, you could write: Yes, because these values represent parts of the whole.

Making a Bar Graph Look Better What is a Pareto Chart? A bar graph in which ________________ _________________________________ Who invented the Pareto Chart?—(name, nationality, occupation and dates)

Making a Bar Graph Look Better What is a Pareto Chart? A bar graph in which the bars are ordered according to value, in either increasing or decreasing order. Who invented the Pareto Chart? Vilfredo Pareto, Italian mathematician and economist, 1848-1923

Bar Graph Characteristics Bar Graph Review 23 April 2017 Bar Graph Characteristics Data can be ______________________ Bars can be ______________________ The x-axis represents ___________________ The y-axis represents____________________ ________________________________ Bars are of _______________________ Categorical or Qualitative Quantitative or Numerical 9 Bar Graph Review.ppt

Bar Graph Characteristics Bar Graph Review 23 April 2017 Bar Graph Characteristics Data can be quantitative or categorical Bars can be vertical or horizontal The x-axis represents the category displayed The y-axis represents the quantitative values of the variable being displayed. y-axis begins at zero Bars are of uniform width and uniformly spaced Categorical or Qualitative Quantitative or Numerical 9 Bar Graph Review.ppt

Bar Graph Characteristics Bar Graph Review 23 April 2017 Bar Graph Characteristics Consistent measurement ____________ ________________________________ Height of bars represent ____________ _____________________________________ The graph is well-annotated with_______ Categorical or Qualitative Quantitative or Numerical 9 Bar Graph Review.ppt

Bar Graph Characteristics Bar Graph Review 23 April 2017 Bar Graph Characteristics A consistent measurement scale is used for each vertical bar Height of bars represent the values of the variable displayed, the frequency of occurrence or percentage of occurrence The graph is well-annotated with title, labels for each bar, vertical scale, horizontal categories, source Categorical or Qualitative Quantitative or Numerical 9 Bar Graph Review.ppt

Bar Graph & Pie Chart Transfer Relationship Every Pie Chart _____________________ _________________________________, BUT______________________________ __________________________________ _________________________________. Bar Graph Þ Pie Chart; Pie Chart Þ Bar Graph

Bar Graph & Pie Chart Transfer Relationship Every Pie Chart COULD be made into a Bar Graph BUT NOT all Bar Graphs CAN be made into Pie Charts Bar Graph Þ Pie Chart; Pie Chart Þ Bar Graph

Changing Scale – The Squiggle Bar Graph Review 23 April 2017 Changing Scale – The Squiggle What is a squiggle? ___________________________________ When do you use a squiggle? __________________________________ __________________________________ __________________________________ Draw & label two different squiggle shapes & names: _________________________________ Categorical or Qualitative Quantitative or Numerical 9 Bar Graph Review.ppt

Changing Scale – The Squiggle Bar Graph Review 23 April 2017 Changing Scale – The Squiggle What is a squiggle? At least a 2-angle line on a bar graph axis that abbreviates a scale. When do you use a squiggle? Use a squiggle on the changed axis whenever you change scale in a bar graph. Horizontal Squiggle Vertical Squiggle Categorical or Qualitative Quantitative or Numerical or 9 Bar Graph Review.ppt

x-axis & y-axis Variables On a vertical bar graph, the y-axis variable is normally_____________ ___________________ On a vertical bar graph, the x-axis variable is normally_________________________________

x-axis & y-axis Variables On a vertical bar graph, the y-axis variable is normally a quantitative variable ® On a vertical bar graph, the x-axis variable is normally a categorical variable Categorical Variables ­

Study Tonight for Quiz— Dragonfly #103 End of Bar Graph Review Study Tonight for Quiz— Dragonfly #103

Test Preparation for Bar Graphs Quiz #103 (Dragonfly #103) Graph Paper (1 sheet) Calculator Clear Lists in STAT:EDIT Pencil Eraser Ruler (or protractor) Quiz Requires TWO Graphs Homework to Box New Homework to be delivered to you