Examine the shape of the both dataframes $(2$ points$).$

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Check the top $5$ rows of each dataframe to see what they look like $(2$ points$).$

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Drop the first column $($Unnamed$)$ from weather, then display the top row $(2$ points$).$

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Combine USAF and WBAN columns of stations DataFrame to create a new column named station$\_$wban that looks like the one in weather DataFrame $($USAF$\_$WBAN$)(2$ points$)$