IOAC - ML Numpy Assessment_26th-Feb-2023

What is the output of the below code?

np.arange(2,8)

• array([2, 3, 4, 5, 6, 7])

• array([3, 4, 5, 6, 7])

• array([2, 3, 4, 5, 6, 7, 8])

   

• array([3, 4, 5, 6, 7, 8])

Which of the following is the correct way to transpose of matrix A?

 

•  Trans(A)

• Transpose(A)

• A.Transpose

• A.T

How to convert a numpy array to list?

• array.list()

• array.list

• list.array()

• list(array)

import pandas as pd

pd.Series([1,2], index= ['a','b','c'])

Output of above snippet:

• Syntax Error

• Index Error

• Value Error

• None of the above mentioned

Which of following statement is wrong

• We can create series from Dictionary in python

• Keys of dictionary become index of the series

• Order of index created from keys may not be in same order as in dictionary

• All of the above

Which of the following is true?

• If data is an ndarray, index must be the same length as data.

• Series is a one-dimensional labeled array capable of holding any data type.

• Both A and B

• None of the above

Which of the following functions can be used to combine different vectors so as to obtain the result for each n-uplet?

• Iid_

• Ix_

• Ixd_

• all of the mentioned

Which function can be used to check whether any of the values is true or not using NumPy?

• np.all()

• np.each()

• np.any()

• np.every()

What would be the answer of this cummulative summation in NumPy?

arr = np.array([1,2,3])

print(np.cumsum(arr))

• [1 3 6]

• [3 6 9]

• [3]

• [6]

Find the dimension of the below array.

a = np.array([[[1,2,3],[4,5,6]]]

• 1

• (1,3)

• 3

• (3,1)