GCSE Secondary Maths Age 13-17 - Probability & Statistics: Scatter Diagram - Explained

The video tutorial explains how to interpret and use scatter graphs, focusing on plotting data, understanding correlation types, estimating with a line of best fit, and identifying outliers. It also covers marking criteria for accuracy in data interpretation.

What is the unit increment on the horizontal axis of the scatter graph?

• Threes

• Ones

• Twos

• Fours

Which type of correlation is shown when data points slope upwards on a scatter graph?

• Inverse correlation

• Positive correlation

• Zero correlation

• Negative correlation

What is the estimated time taken for a delivery of 10 kilometers using the line of best fit?

• 15 minutes

• 20 minutes

• 25 minutes

• 30 minutes

What is an outlier in the context of a scatter graph?

• A point that is at the origin

• A point that is on the line of best fit

• A point that is far from other points

• A point that fits the pattern

How many marks are awarded for correctly estimating the time for a 10 km delivery?

• Four marks

• Three marks

• Two marks

• One mark