Data Science Basics

What Pandas function is used to read a CSV file?

• load_csv()

• parse_csv()

• open_csv()

• read_csv()

Which Numpy function is used to create an array filled with zeros?

• np.zero()

• np.zeros()

• np.empty()

• np.zeros(1)

How can you append an element to a list in Python?

• list_name.add(element)

• list_name.insert(element)

• list_name.append(element)

• list_name.extend(element)

What method in dictionaries is used to remove a key?

• extract()

• delete()

• clear()

• pop()

How can you access the second element in a tuple?

• tuple_name[2]

• tuple_name(1)

• tuple_name[1]

• tuple_name.get(1)

What Pandas function is used to drop missing values from a DataFrame?

• filter_nulls()

• dropna()

• clean_data()

• remove_missing()

Which Numpy function is used to calculate the mean of an array?

• np.mode()

• np.average()

• np.median()

• np.mean()

What operation can you perform to reverse a list?

• reverse()

• flipList()

• backwards()

• reverseList()

What method in dictionaries is used to get the value of a key?

• get()

• fetch()

• find()

• retrieve()

How can you concatenate two tuples in Python?

• tuple1 * tuple2

• tuple1 - tuple2

• tuple1 / tuple2

• tuple1 + tuple2