Scatter Graphs Video Q&A

What does a scatter graph show?

• The distance between two things

• The average value of the dataset

• The sum of all data points

• The relationship between two variables or events

What is the purpose of drawing a line of best fit on a scatter graph?

• To separate positive and negative values

• To make the correlation more visible

• To count the number of data points

• To determine the exact value of each point

What does a line of best fit help to estimate?

• The maximum value of data points

• The exact values of all data points

• The minimum value of data points

• The overall trend of the data

What does it mean if two variables are positively correlated?

• Increasing one decreases the other

• They are not related

• Increasing one increases the other

• They cancel each other out

What type of correlation exists between ice cream sales and temperature?

• Positive

• No correlation

• Negative

• Complex correlation

What is an example of a negative correlation?

• Study time and test scores

• Ice cream sales and temperature

• Number of pirates and global warming

• Temperature and heating bill

Can correlation between two factors prove causation?

• No, never

• Only in scientific studies

• Sometimes, it provides evidence

• Yes, always

Why does correlation not necessarily mean causation?

• Because one factor might not cause the other

• Because it's always a coincidence

• Because correlations are always positive

• Because data is often incorrect