Here are five scores a team put up over five matches: 2, 2, 2, 8 and 100.
Is the average score a fair way to describe this team? What would be a fairer way to say what they usually score?
Look at each data set below as a dot plot. The mode and range are drawn on top so you can see where each one lands.
In the last set, one dot (the 30) sits far from the rest.
We'll read the mode and range off the dot plot for three sets:
In your maths copy, write this data set in order from smallest to largest:
Then, side by side underneath, record its mode, its range and its mean. To find the mean, add all the values and divide by how many there are. Circle the one measure you think best describes the set.
Today we summarise four sets, one at a time. Read the measure asked for, then Check:
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