QUESTION IMAGE
Question
the table below shows the relationship between the number of hot dogs and the number of soft pretzels that were sold at some baseball games.
snacks sold
hot dogs: 1,500, 5,000, 6,000, 3,000, 7,000, 2,500
soft pretzels: 1,500, 4,000, 3,000, 5,500, 6,000, 8,000
make a scatter plot to show the data.
click to graph a point. click the point again to delete it.
- does the scatter plot represent a positive, negative, or no correlation?
- what does that mean about the number of hot dogs and the number of soft pretzels?
Question 1
Step1: Analyze scatter plot trend
The scatter plot's line (or general point trend) slopes downward. In correlation, a negative slope means as one variable increases, the other decreases.
Step2: Determine correlation type
Since the trend is a downward slope (one variable up, the other down), it's a negative correlation.
A negative correlation means that as the number of hot dogs sold increases, the number of soft pretzels sold tends to decrease (or vice versa), showing an inverse relationship between their sales.
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Negative correlation