NumPy

 What is the output type of np.array([1, 2, 3])?

• A. List

• 
  B. Tuple

• 
  C. ndarray

• D. Series

 Which function returns evenly spaced values within a given range?

• A. np.linspace()

• 
  B. np.arange()
  

• 
  C. np.range()
  

• D. np.space()

What is the output of np.zeros((2,3))?

• A. A 2x3 array filled with zeros

• B. A 3x2 array filled with zeros

• 
  C. A 2x3 array filled with ones

• 
  D. An empty array

What does a.shape return if a = np.array([[1, 2], [3, 4]])?

• A. (4,)

• B. (2, 2)

• C. 2

• D. [2, 2]

Which of the following is used to get a random number between 0 and 1?

• A. np.random.int()
  

• 
  B. np.random.rand()
  

• 
  C. np.random.uniform(1)
  

• 
  D. np.random.random()

How do you access the element at the second row and third column of a 2D NumPy array a?

• A. a[1][2]
  

• 
  B. a[2][3]
  

• 
  C. a[2,3]
  

• 
  D. a[1,2]

What is the output of np.arange(1, 10, 2)?

• [1,2,3,4,5,6,7,8,9,10]

• [2,4,6,8,10]

• [1,3,5,7,9]

• [1,3,5,7]

Which of the following checks for NaN values?

• np.isnanull()

• np.isnull()

• np.isempty()

• np.isnan()

What will be the output of np.array([True, False, True]) & np.array([False, False, True])?

• [True, False, False]

• [False, False, True]

• [False, False, True]

• [True, True, True]

What does np.all() do?

• Returns all elements of an array

• Checks if array is not empty

• Returns True if all elements are True

• Returns the sum of elements