Displaying Data, SM-Bank 009

Angus asked all the students in his primary school how far away they lived from school.

He used the results to create the column graph below but left off some labels.

Angus' primary school has 100 students.

How many students lived over 8 km from school? (2 marks)

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\(18\ \text{students}\)

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\(\text{Since there are 5 columns and 100 students, the }\)

\(\text{average number of students per column is 20.}\)

\(\longrightarrow\ \text{Each interval = 4 students}\)

\(\therefore\ \text{Number of students living over 8 km away}\)

\(=4.5\times 4\)

\(=18\ \text{students}\)