Checking understanding of statistical problems
I can evaluate different statistical measures to draw conclusions about a data set.
Checking understanding of statistical problems
I can evaluate different statistical measures to draw conclusions about a data set.
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Lesson details
Key learning points
- A statistical summary involves the mean, median, mode and range.
- Each summary gives us different insights into a data set.
- Conclusions may be affected by the way the data was collected.
Keywords
Arithmetic mean - The (arithmetic) mean for a set of numerical data is the sum of the values divided by the number of values. It is a measure of central tendency representing the average of the values.
Median - The median is the central (middle) piece of data when the data are in numerical order. It is a measure of central tendency representing the average of the values.
Mode - The mode is the most frequent value. It is a measure of central tendency representing the average of the values.
Range - The range is a measure of spread. It is found by finding the difference between the highest and lowest values.
Population - The population is the entire set of people, creatures, plants or items that make up the whole group which is being studied.
Common misconception
Pupils may believe that as mean, median and mode are all averages that they are all as useful as each other for every data set.
Using non qualitative data to show that the mean and median cannot be calculated, so the mode would be the only option. Showing data sets that have the same mean value but are considerably different to each other.
To help you plan your year 10 maths lesson on: Checking understanding of statistical problems, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 10 maths lesson on: Checking understanding of statistical problems, download all teaching resources for free and adapt to suit your pupils' needs.
The starter quiz will activate and check your pupils' prior knowledge, with versions available both with and without answers in PDF format.
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Licence
Lesson video
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Starter quiz
6 Questions
Mode -
Most common data value
Median -
The middle (central) piece of data when the data are in order
Mean -
Sum of the data values divided by the number of values
Range -
Highest data value − lowest data value
Exit quiz
6 Questions
