___________
Maths
Numerical summaries of data
Starter quiz
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Match each type of average with its description.
mean
⇔
the sum of the data divided by the number of data points ✓
median
⇔
the most central (middle) piece of data ✓
mode
⇔
the data value with the highest frequency ✓
The spread of a data set can be measured using the
______
, by subtracting the lowest value from the highest value.
'range' ✓
What is the mode for the data represented in the dot plot? The mode is
______
'3' ✓
What is the median for the data represented in the dot plot? The median is
______
'4' ✓
Find the mean for following numbers: 1, 4, 7, 8. The mean is
______
'5' ✓
Which set of numbers has the greatest range?
20, 24, 25, 27, 29 ✓
23, 24, 25, 29, 29
33, 34, 35, 37, 39
134, 135, 137, 140
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