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

This video tutorial guides viewers through a paper, focusing on scatter graphs. It explains how to identify outliers, determine types of correlation, and estimate values using a line of best fit. The tutorial also evaluates a weatherman's statement about temperature and sunshine correlation, reinforcing the concept of positive correlation.

What is the coordinate of the outlier in the scatter graph?

• 10, 19

• 9, 18

• 11, 20

• 10, 18

What type of correlation is shown when the points on a scatter graph move upwards?

• Negative correlation

• Inverse correlation

• Positive correlation

• Zero correlation

If the maximum temperature in another town is 16.4 degrees Celsius, what is the estimated number of sunshine hours?

• 10.2

• 14.0

• 12.8

• 11.5

Why might there be a range of values for the estimated sunshine hours?

• The graph is not accurate

• The temperature readings are incorrect

• The line of best fit can vary slightly

• The sunshine hours are not recorded properly

What does the weatherman claim about temperature and sunshine?

• Low temperatures occur with more sunshine

• High temperatures occur with less sunshine

• High temperatures occur with more sunshine

• Temperature and sunshine are unrelated

Does the scatter graph support the weatherman's claim about temperature and sunshine?

• No, it shows no correlation

• Yes, it shows zero correlation

• Yes, it shows positive correlation

• No, it shows negative correlation

What is the reason given for the weatherman's claim being correct?

• Low temperatures have high hours of sunshine

• High temperatures have high hours of sunshine

• Temperature and sunshine are inversely related

• High temperatures have low hours of sunshine