To calculate the mean rainfall for the highland and lowland storms, follow these steps:
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List the data for each area: Add up all the rainfall totals from the dot plots for both highland and lowland areas.
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Count the number of storms in each area to determine how many data points you have.
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Calculate the mean by using the formula:
\[ \text{Mean} = \frac{\text{Sum of rainfall totals}}{\text{Number of storms}} \]
Since I don't have access to the actual dot plots or their data, I can't calculate the specific values. If you provide the rainfall totals for both the highland and lowland storms, I can help you compute the mean for each.