1) What is the main difference between a bar graph and a histogram? a) Bar graphs show continuous data, histograms show discrete data. b) Bar graphs show discrete data, histograms show continuous data. c) Bar graphs and histograms are the same. d) Histograms use colours, bar graphs do not. 2) In a stacked bar graph, what do the sections of the bar represent? a) Time intervals b) The range of data.  c) The total data value. d) Different data categories. 3) What graph would you use to compare parts of a whole over time? a) Bar graph b) Line plot c) Histogram d) Stacked Bar graph 4) How do you calculate the range of a data set? a) Add up all the numbers, once you have the total divide by the number of data points. b) Arrange the data from least to greatest and find the middle.  c) Find the number that appears the most often. d) Calculate the smallest number from the largest number 5) What makes histograms different from bar graphs? a) Histograms have gaps between bars. b) Histograms use intervals on the x-axis c) Histograms are for the qualitative data. d) Histograms always use percentages. 6) What data type is most appropriate for a stacked bar graph? a) Discrete data divided into categories. b) Data with outliers only c) Categorical data with gaps. d) Continuous data with gaps. 7) What happens if the interval size in a histogram a) The histogram becomes more detailed. b) The graph becomes easier to interpret. c) The range decreases. d) Important trends might be hidden. 8) Why might you choose a bar graph instead of a stacked bar graph? a) To compare indidivual categories more clearly. b) To display trends over time. c) To show how categories contribute to a whole. d) To represent continuous data with intervals. 9) What does the total height of a bar in a stacked bar graph represent? a) The value of the largest segment. b) The sum of all segments in the bar. c) The average value of the segments. d) The difference between the largest and smallest segments. 10) Why might you choose a bar graph instead of a stacked bar graph? a) To show how categories contribute to a whole  b) To display trends over time. c) To compare individual categories more clearly. d) To represent continuous data with intervals.

Bar Graphs Vs. Stacked Bar Graphs

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