The starter and exit quiz of the lesson “Checking understanding of the mean”, from the unit “Numerical summaries of data” (Year 8 Maths) by Oak National Academy.
Eight pupils each roll a dice seven times. There are ___ rolls of the dice altogether.
There are 40 students that need to be sorted into equal groups. How many different group sizes could there be? ___
The (arithmetic) mean for a set of numerical data is the sum of the values ___ by the number of values. It is a measure of central tendency representing the average of the data.
Which of these towers of blocks have a mean of 4?
The mean for this data set: 5, 4, 7, 5, 8, 2, 9, 3, 5, 2 is ___
What is the mean of the data shown on this dot plot? ___
Match each total with the number of data values and mean.
A large data set has 620 pieces of data and a total of 3906. The mean of the data set is ___ .