Starter quiz
- A statistical summary sums up the features of a __________ .
- data cycle
- data set ✓
- datum
- graph
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- When using spreadsheet software, which command would calculate the mean for a column of numerical data?
- =average(A1:J1)
- average(B1:B10)
- =mean(A1:J1)
- =average(B1:B10) ✓
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- When using spreadsheet software, which command would calculate the range for a column of numerical data?
- max(A1:A10)-min(A1:A10)
- =range(A1:J1)
- =max(B1:B10)-min(B1:B10) ✓
- =range(B1:B10)
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- When using spreadsheet software, which command would calculate the median for a row of numerical data?
- =median(A1:A10)
- =middle(A1:A10)
- =median(A1:J1) ✓
- =middle(A1:J1)
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- When using spreadsheet software, what symbol represents multiplication?
- * ✓
- x
-
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- When using spreadsheet software, what is the correct way to input, and calculate, ?
- = 2 * 3 / 5 ✓
- = 2 x 3 / 5
- = 2 x 3 \ 5
- = 2 * 3 \ 5
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Exit quiz
Both the pie chart and bar chart represent the same data set of: modes of transport to work. What percentage of people took the bus to work?- Less than 25%
- Exactly 25%
- More than 25% ✓
- Exactly 50%
- More than 50%
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- Both the pie chart and bar chart represent the same data set of: modes of transport to work. Calculate the percentage of people who travelled by car. Give your answer to 1 d.p.
- '19.1' ✓
- True or false? A pie chart can be used to complete an incomplete stem and leaf diagram.
- True. Pie charts help identify which groups the missing data points belong to.
- True. Pie charts give the exact missing values.
- False. Pie charts do not share any information with stem and leaf diagrams.
- False. Pie charts give no information about the value of a missing data point. ✓
-
Calculate the median for this data set represented as a frequency table.- '2 goals' ✓
- Calculate the mean for this data set represented as a frequency table. Give your answer to 1 d.p.
- '1.5 goals' ✓
- A newspaper reporter is writing an article about your hockey team's performance. Which average(s) would you use to help describe your average number of goals scored per match?
- Mean
- Median ✓
- Mode ✓
- Range
-
Worksheet
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Presentation
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Video
Lesson Details
Key learning points
- Data can be hard to compare when presented in differing formats.
- Being able to convert/interpret differing representations is useful.
- It is important to identify the most efficient form for the data to be in to compare it.
Common misconception
The mode is the most useful average as it can be calculated from bar charts, pie charts and frequency tables.
Although it is often the easiest of the averages to calculate, this does not make it the most useful.
Keywords
Bar chart - A bar chart (bar graph) is a graph consisting of bars visually representing the frequency of objects or groups.
Pie chart - A pie chart (pie graph) is a circular graph where sectors represent different groups proportionally.
Stem and leaf diagram - A stem and leaf diagram is a systematic way to visually organise and represent numerical data.
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