Correlation between price and quantity sold
This data represents 100 online auctions selling multiple collectible items in each listing. Is there a correlation between price and quantity sold? Let's find out!
Recall that correlation, which you can calculate using CORREL()
, ranges between -1
and 1
.
- 0 correlation means there is no relationship between variables.
- Positive correlation indicate that as one variable increases, the other also increases.
- Negative correlation values signify that as one variable increases, the other decreases.
Here you will create a scatter plot (also known as a "scatter chart" or "XY graph") to visually represent the correlation. Do you think the price of an item has a positive or negative correlation to the total quantity sold? What do you expect the scatterplot pattern to look like? Let's find out in this exercise!
This exercise is part of the course
Introduction to Statistics in Google Sheets
Exercise instructions
- In cell
D2
, calculate the correlation between "Open Price" (B2:B100
) and "Quantity Sold" (A2:A100
). - Insert a scatter plot where the X variable is "Open Price" and Y variable is "Quantity Sold". Will they be positively or negatively correlated?
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