Data, trends and graphs
Answers are for parents and teachers.
1
Ask 10 family members or friends: “Which colour do you like best: red, blue or green?” Make a tally table and a bar graph.
The three totals must add up to 10. The tallest bar is the favourite colour.
2
A shop sold 6, 8, 10, 12 ice creams on four days. What is the trend and how many on the fifth day if it continues?
Going up by 2 each day. The fifth day: 14.
3
Write the four analysis questions in your own words and answer them for the numbers 10, 8, 6, 4.
Answers differ. The numbers go down by 2; the next is 2.
4
Name a source you trust for a school project and a source you do not trust. Say why.
Answers differ. Trusted: school book, teacher. Not trusted: rumours.
5
Draw a bar graph for this data: 4 children walk, 6 take the bus, 2 come by car.
Bars of height 4, 6 and 2. The bus bar is tallest. Total 12 children.