Numpy Quiz 1

What function is used to create an array in NumPy?

• numpy.createArray()

• numpy.makeArray()

• numpy.newArray()

• numpy.array()

Which method is used to reshape a NumPy array?

• transform

• resize

• reshape

• adjust

How do you concatenate two NumPy arrays?

• Use numpy.concatenate((array1, array2), axis=0) to concatenate two NumPy arrays.

• Use numpy.add(array1, array2) to concatenate two NumPy arrays.

• Combine arrays with array1 + array2 for concatenation.

• Use numpy.stack((array1, array2), axis=1) to concatenate two NumPy arrays.

What is the output of np.arange(5)?

• [0, 1, 2, 3, 4]

• [0, 1, 2, 3, 4, 5]

• [0, 1, 2, 3]

• [1, 2, 3, 4, 5]

Which function computes the mean of a NumPy array?

• numpy.average

• numpy.sum

• numpy.mean

• numpy.median

What does the np.zeros() function return?

• A list of empty strings.

• An array filled with ones.

• An array filled with zeros.

• A matrix of random numbers.

How can you change the data type of a NumPy array?

• Use the `astype()` method to change the data type of a NumPy array.

• Change the data type by reassigning the array to a new variable.

• Use the `convert()` function to change the data type.

• Use the `change_type()` method to modify the data type.

What is the purpose of np.loadtxt()?

• To load data from a text file into a NumPy array.

• To convert a NumPy array into a list.

• To save data to a text file from a NumPy array.

• To read data from a binary file into a NumPy array.

What does the dtype parameter specify in NumPy?

• The dtype parameter is used to specify the shape of the array.

• The dtype parameter specifies the data type of the elements in a NumPy array.

• The dtype parameter indicates the number of dimensions in the array.

• The dtype parameter defines the size of the NumPy array.

How do you access the shape of a NumPy array?

• array.size

• array.length

• array.dimensions

• array.shape