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Probability and Statistics

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Line Graphs and Curve Graphs

Probability and Statistics Line Graphs and Curve Graphs
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  • (0:01) Understanding Line Graphs: A line graph connects data points with line segments to show trends over time, such as temperature changes throughout the day.
  • (0:09) Drawing a Line Graph: Label the x-axis (usually time) and y-axis (the measured variable), scale both axes, plot the points, and connect them with line segments. Add a title to describe the data.
  • (2:14) Curve Graphs: A curve graph connects data points with a smooth curve, useful for showing gradual changes or non-linear relationships, like plant growth over time or running speed over age.

📂 Revision Cards

Line graph showing temperature changes from -3°C to 3°C throughout the day, with instructions on reading and creating line graphs.
1) Line Graph from a Data table
Line graph illustrating daily sales for a week with a peak on Friday, highlighting sales of 20 on Tuesday and 80 over the weekend.
2) Interpreting a Line Graph
A curve graph illustrating the growth of a plant over five weeks and running speed over age.
3) When Curve Graphs are More Appropriate
Comparison of line graphs and curve graphs, highlighting differences in representation and complexity of data relationships.
4) Line vs Curve Graphs

🍪 Quiz Time - Practice Now!​

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Line Graphs and Curve Graphs

1 / 6

Q: At 2 PM, what was the temperature?

A line graph titled "Temperature Over 5 Hours," showing temperature (°C) on the y-axis and time (1 pm to 6 pm) on the x-axis.

2 / 6

Q: Between which two consecutive hours did the temperature decrease?

A line graph titled "Temperature Over 5 Hours," showing temperature (°C) on the y-axis and time (1 pm to 6 pm) on the x-axis.

3 / 6

Q: How many ice creams were sold in total from Monday to Wednesday?

 

aA line graph titled "Ice Cream Sales Over a Week", showing number of ice cream sold on the y-axis and days of the week (Monday to Sunday) on the x-axis.

4 / 6

Q: By how many ice creams did sales increase from Thursday to Friday?

aA line graph titled "Ice Cream Sales Over a Week", showing number of ice cream sold on the y-axis and days of the week (Monday to Sunday) on the x-axis.

5 / 6

Q: What was the average number of ice creams sold per day over the weekend?

aA line graph titled "Ice Cream Sales Over a Week", showing number of ice cream sold on the y-axis and days of the week (Monday to Sunday) on the x-axis.

6 / 6

Q: A curve graph shows the temperature of a cup of tea over time. The curve decreases steeply at first, then flattens as it approaches room temperature. What does the flattening of the curve represent?

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