You$$re a junior data analyst working for a local news station and your team uses BigQuery to analyze weather trends. The station$$s meteorologist has tasked you with understanding the relationship between wind speed and visibility in $2023.$ However, you$$re working with the newest data and it hasn$$t been cleaned yet. Missing values were incorrectly entered as zeroes, and you need to change them to null values before you look for trends. The code you$$re using to do this is returning an error message. But don$$t worry! You can ask for help on Stack Overflow.

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