Numpy

What is a correct syntax to create a NumPy array?

• np.array([1, 2, 3, 4, 5])

• np.object([1, 2, 3, 4, 5])

• np.createArray([1, 2, 3, 4, 5])

Which of the following arrays is a two dimensional (2-D) array?

• [1, 2, 3, 4, 5]

• [[1, 2, 3], [4, 5, 6]]

• 42

What is a correct syntax to print the first item of an array?

• print(myArr,1)

• print(myArr[0])

• print(myArr[1])

Which syntax would print every other item from the array below:

arr = np.array([1,2,3,4,5,6,7])

• print(arr[1:3:5:7])

• print(arr(0: step = 2))

• print(arr[::2])

What is a correct syntax to print the number 8 from the array below:

arr = np.array([[1,2,3,4,5], [6,7,8,9,10]])

• print(arr[1, 2])

• print(arr[7, 2])

• print(arr[3, 0])

Which syntax would print the last 4 numbers from the array below:

arr = np.array([1,2,3,4,5,6,7])

• print(arr[4])

• print(arr[3:])

• print(arr[4:])

• print(arr[:4])

Which syntax would print every other item from the array below:

arr = np.array([1,2,3,4,5,6,7])

• print(arr[1:3:5:7])

• print(arr(0: step = 2))

• print(arr[::2])

What is a correct syntax to create a Pandas Series from a Python list?

• pd.getSeries(mylist)

• pd.createSeries(mylist)

• pd.Series(mylist)

What is a correct syntax to return the first value of a Pandas Series?

• get(myseries, 0)

• myseries[0]

• myseries.get(0)

What is a correct syntax to add the lables "x", "y", and "z" to a Pandas Series?

• pd.Series(mylist, names = ["x", "y", "z"])

• pd.Series(mylist, lables = ["x", "y", "z"])

• pd.Series(mylist, index = ["x", "y", "z"])