# I cannot figure out what do the ask me to output

I guess I already solve the problem, but I just miss the correct value for ratio. This is what do they ask me to do... <<You are working with the COVID dataset for California, which includes the number of cases and deaths for each day of 2020. Find the day when the deaths/cases ratio was largest. To do this, you need to first calculate the deaths/cases ratio and add it as a column to the DataFrame with the name 'ratio', then find the row that corresponds to the largest value. Important: The output should be a DataFrame, containing all of the columns of the dataset for the corresponding row.>> So my question is, how to calculate the ratio of the max values from cases and deaths?? You can access to the file by usisn this path in your code: /usercode/files/ca-covid.csv