Give yourself ample time to meet the deadline. It is far better to under-promise and over-deliver than to do the opposite. A good rule of thumb is to work out how many days you think the project will take as a whole and then add 20 per cent to that number. More often than not in data science, you barely meet your deadline. And if you come up against any obstacles and you think that you may not meet the date on which you had initially agreed, make sure to tell the person who needs to know as early as possible. Keeping people informed will build trust between you and your stakeholders, and keep
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