Worksheet: Interpreting and Presenting Data

In this worksheet, we will practice analyzing, interpreting, and presenting data; recognizing trends; and identifying anomalous results.

Q1:

The graph shows the relative abundance of gases A and B during a reaction where A transforms into B.

Which of the following statements is false?

  • AThe lines for A and B cross at relative abundance = 50%.
  • BAt the end of the reaction, A is completely consumed.
  • CThe rate of the reaction is high at the start and low at the end.
  • DAt time 0, the relative abundance of B is 100%.
  • EAs the quantity of A decreases, the quantity of B increases.

Q2:

Shown in the graph are the relative abundance of gases A and B during a reaction where A transforms into B.

At time 𝑡, a modification to the system dramatically alters the abundances of A and B. Which of the following is the least likely explanation for the changes observed?

  • AThe gases were stirred.
  • BThe temperature increased.
  • CA catalyst was added.
  • DMore of A was added.
  • EThe pressure increased.

Q3:

The given graph contains numerous errors and bad practices. Which of the following descriptions is not a bad practice shown in the graph?

  • AThe line of best fit passes through the origin (0,0) and one data point.
  • BThe points have been plotted as large, circular blobs.
  • CA line of best fit has been drawn through the data instead of connecting each point.
  • DThe axes are labeled, but no units are included.
  • EThe scale on the 𝑥-axis does not have regular intervals.

Q4:

Which of the following shows data represented as a bar chart?

  • A
  • B
  • C
  • D

Q5:

The given scatterplot shows the melting point against the density for a group of elements with stable isotopes. Which of the following statements can be concluded using information from the scatterplot only?

  • AIn general, the greater the density, the lower the melting point.
  • BIn general, the lower the density, the higher the melting point.
  • CIn general, the greater the density, the higher the melting point.
  • DThere is no correlation between the density of an element and its melting point.
  • EElements with a melting point of 0C have very low densities.

Q6:

The table below shows data that has been collected. Which type of graph would most suitably present this data?

ElementsHydrogenHeliumBerylliumBoronCarbonNitrogenOxygenFluorineNeon
Number of Recognized Isotopes7911131516161719
  • ALine graph
  • BBar chart
  • CArea graph
  • DPie chart
  • EScatter plot

Q7:

The results from an experiment are shown in the given table. Which type of graph would most suitably present this data?

Time (s)0101520253035404550
Concentration (mol/dm3)1.00.940.880.740.650.560.480.390.320.24
  • ABar chart
  • BScatterplot
  • CFlowchart
  • DPie chart
  • EArea graph

Q8:

A student has plotted data from an experiment on a graph, as shown. The student wants to draw a line of best fit through the data to identify any trends and anomalous results. Which of the given graphs shows the most suitable line of best fit for the data?

  • A
  • B
  • C
  • D

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