Numpy and pandas Introduction

What is a correct syntax to create a NumPy array?

• np.object([l, 2, 3, 4, 5])

• np.array([l, 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],[4,5,6]]

• 42

• [1,2,3,4,5]

What is a correct syntax to check the number of dimensions in an array?

• arr.ndim()

• arr.dim

• arr.ndim

• arr.dim()

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

• print(myArr[1])

• print(myArr[0])

• print(myArr,1)

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[3, 0])

• print(arr[1, 2])

• print(arr[7, 2])

What is a correct syntax to print the numbers [3, 4, 5] from the array below:

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

• print(arr[2:5])

• print(arr[3:6])

• print(arr[2:4])

• print(arr[2:6])

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

• pd.Series(mylist)

• pd.getSeries(mylist)

• pd.createSeries(mylist)

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

• myseries.get(0)

• myseries[0]

• get(myseries,0)

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

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

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

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

What is a correct syntax to create a Pandas DataFrame?

• pd.dataframe(data)

• pd.DataFrame(data)

• pd.df(data)