The eye colour of students in a class is recorded. Is this data categorical or numerical?
A.Categorical
B.Numerical
Q2Straightforward
The number of pets owned by each student in a class is recorded. Is this data categorical or numerical?
A.Categorical
B.Numerical
Q3Straightforward
Students are asked to name their favourite subject at school. Is this data categorical or numerical?
A.Categorical
B.Numerical
Q4Straightforward
The height of each student in a class is measured in centimetres. Is this data categorical or numerical?
A.Categorical
B.Numerical
Q5Moderate
The number of books read by each student during the school holidays is recorded. Is this numerical data discrete or continuous?
A.Discrete
B.Continuous
Q6Moderate
The temperature at midday is recorded to the nearest tenth of a degree every day for a month. Is this numerical data discrete or continuous?
A.Discrete
B.Continuous
Q7Moderate
A teacher records the number of incorrect answers each student gives on a 20-question test. Is this numerical data discrete or continuous?
A.Discrete
B.Continuous
Q8Moderate
The time taken (in seconds) for each student to complete a 100 m race is recorded. Is this numerical data discrete or continuous?
A.Discrete
B.Continuous
Q9Challenging
A class survey records the favourite colour of each student. Which display is most appropriate for showing how many students chose each colour?
A.Bar chart
B.Histogram
C.Line graph
D.Stem-and-leaf plot
Q10Challenging
A scientist records the temperature of a pond every hour over 24 hours and wants to show how temperature changes over time. Which display is most appropriate?
A.Bar chart
B.Pie chart
C.Line graph
D.Dot plot
Q11Challenging
A student asks 20 classmates how many hours of TV they watch per day. The answers are whole numbers from 0 to 6. Which display best shows the spread of these values?
A.Pie chart
B.Line graph
C.Dot plot
D.Histogram
Q12Challenging
The heights (in cm) of 40 students are recorded, with values ranging from 148 cm to 179 cm. Which display is most appropriate for showing how heights are distributed?
A.Pie chart
B.Bar chart
C.Histogram
D.Dot plot
Displaying data
Q13Straightforward
A bar chart shows the number of students who chose each fruit as their favourite: Apple: 8, Banana: 5, Orange: 11, Grapes: 4. How many students chose orange?
Q14Straightforward
A dot plot records the shoe sizes of a group of students. The number of dots above each size is: Size 6: 3, Size 7: 5, Size 8: 4, Size 9: 2. How many students have shoe size 7?
Q15Straightforward
A line graph shows the number of ice-creams sold each day: Monday 12, Tuesday 18, Wednesday 24, Thursday 15, Friday 30. How many ice-creams were sold on Thursday?
Q16Straightforward
A bar chart shows the points scored by five teams: Red 45, Blue 38, Green 52, Yellow 29, Purple 41. How many points did the Green team score?
Q17Moderate
A student surveys classmates about whether they own a dog, cat, bird, or no pet. Which display is most appropriate for this categorical data?
A.Bar chart
B.Dot plot
C.Line graph
D.Stem-and-leaf plot
Q18Moderate
A weather station records the average temperature for each month of the year and wants to show how temperature changes across the year. Which display best shows this trend?
A.Dot plot
B.Pie chart
C.Line graph
D.Histogram
Q19Moderate
A sports coach records the fitness test scores of 12 players. Scores are whole numbers from 1 to 10. Which display best shows all individual scores and how often each score occurs?
A.Pie chart
B.Dot plot
C.Bar chart
D.Line graph
Q20Moderate
A survey of 100 people asks them to name their favourite season. The results are to be displayed so that each season's share of the total is clearly visible. Which display is most appropriate?
A.Line graph
B.Dot plot
C.Histogram
D.Pie chart
Q21Challenging
A bar chart shows the number of students absent from school each week over 5 weeks: Week 1: 3, Week 2: 7, Week 3: 5, Week 4: 4, Week 5: 6. What is the total number of absences over the 5 weeks?
Q22Challenging
A dot plot shows the number of goals scored by a team in each match of a season. The dots above each value are: 0 goals: 3, 1 goal: 5, 2 goals: 4, 3 goals: 2, 4 goals: 1. How many matches did the team play in total?
Q23Challenging
A pie chart shows how 80 students travel to school. The sector for walking represents 25% of the pie chart. How many students walk to school?
Q24Challenging
A bar chart shows the number of library books borrowed each school term: Term 1: 124, Term 2: 87, Term 3: 93, Term 4: 116. How many more books were borrowed in Term 1 than in Term 2?
Worked solutions and answers at openmath.au/year-7/data-classification