2. Below is some of the data collected from a questionnaire. Phone ownership
100 120
60 80
40 20
Girls Gender How students travel to school
Age Walk Car Bus Train Bicycle Other 8–10 10 20 3 0 11–13 28 40 35 1 14–16 11 22 9 2
2 9 1
2 2 3
Copy the paragraph below and using the data provided and the suggested options in bold fi ll in the blanks. From this particular
(population/sample), the (slightly/a lot) less girls than boys in the be seen that the
ownership is high for students with the data showing that population) own a mobile phone. This phone than don’t own a mobile phone.
3. Sami recorded how many of various items his family recycled over a two-week period.
The graph on the right represents the data he collected.
Using evidence from the graph, write as many diff erent conclusions as possible that Sami could come to using the data he collected.
Our recycling bin
20 24
16 12
4 8
Week 1 Week 2
(table/graph) suggests that there are (population/sample). From this data, it can
(car/train) appears to be the most popular method. The data also showed that mobile phone (37%/63%) of the
(proves/suggests) that more students own a mobile
(i) Can you identify any pattern/trend from this bar chart?
(ii) What conclusion can Evie draw from this data?
(iii) Can you think of any possible limitations to this conclusion?
(iv) Suggest improvements that Evie could make to ensure her conclusions are more reliable.
Item
4. Evie wanted to investigate if older students spent more time online over the weekend. She asked 30 students of diff erent ages how many hours they spent online last weekend. On the right is a graph of the results she obtained.
16 14 12 10
8 6
4 2
8 9 10 11 Age (years) 430 Linking Thinking 1 12
Time spent online over the weekend
5. The bar chart on the right represents the number of visitors to an adventure centre over the course of a year.
Visitors per month 1 000
800 900
700 600 500
400 300
200 100
Month of the year
(i) Describe the pattern in the number of visitors from April to November.
(ii) Why do you think December doesn’t seem to follow this pattern?
(iii) Give one other conclusion you can draw from this bar chart.
(mean/median) age of a student in the sample was 12. Travelling to school by (sample/