What is the same? What is different?
The same data. The table counts how many of each.
The table shows the goals scored in 10 matches. Work out the mean.
Siblings of 20 students
Mean 1.3
Books read by 20 students
Mean 2.25
Cars at 25 homes
Mean 1.36
Eggs in 20 nests
Mean 2.55
Pets of 25 students
Mean 1.08
Days missed by 50 students
Mean 1.32
In 20 matches a team scores 0 goals four times, 1 goal seven times, 3 goals three times and 2 goals in the rest. Work out the mean number of goals.
A table shows the values 0, 1, 2 and 3. Tara adds them up and divides by 4. What has she done wrong?
The table shows the goals a team scored in each match.
Work out the mean number of goals per match.
Ella works out (0 + 1 + 2 + 3 + 4) ÷ 5 = 2. Explain why this is not the mean.
