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Tutor profile: Will V.

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Will V.
Data Scientist at Booking.com, Tutor for 4+ years experience,
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Questions

Subject: Python Programming

TutorMe
Question:

How do you deal with time-series data in Python?

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Will V.
Answer:

Mostly, we will use to.datetime package to change the object to date-time type so that we can apply basic and complex operations when we want to manipulate the dataframe.

Subject: Chemistry

TutorMe
Question:

How do you distinguish strong Nucleophile and strong Base?

Inactive
Will V.
Answer:

Although the property of both molecule types is similar, strong nucleophile is more generic than strong base. Base refers to what rapidly reacts to H+ ion, while nucleophile refers to the molecule whose electron concentration will likely react to the spot that lacks negativity charge.

Subject: Data Science

TutorMe
Question:

Why is an online political poll likely to be statistically skewed?

Inactive
Will V.
Answer:

Statistical skewness derives from systematic error in a sampling process. When we conduct an online experiment, we might want to sample the portion of online respondents. But if that portion is not random, meaning that most of chosen ones are on Democrat side (only few of them are Republican), it will result in the outcomes benefitting towards Democrat

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