#### 1. How do we install Numpy in the system?

A) .install numpy

B) pip install python numpy

C) pip install numpy python

D) pip install numpy

**Correct Answer: ** pip install numpy

**Explanation : **We have Numpy "pip install numpy" in the system

#### 2. How can we change the size of Numpy array in python?

A) Shape()

B) reshape()

C) ord()

D) change()

**Correct Answer: ** reshape()

**Explanation : **We can change the size of Numpy array in python with reshape().

#### 3. eye() method is available in __________?

A) django

B) numpy

C) A और B

D) flask

**Correct Answer: ** numpy

**Explanation : **eye() method is available in numpy.

#### 4. The numpy library was created in the year _________?

A) 2001

B) 2003

C) 2005

D) 2000

**Correct Answer: ** 2005

**Explanation : **numpy library was created in the year 2005.

#### 5. [::-1] reverses array or sequence?

A) True

B) False

**Correct Answer: ** True

**Explanation : **[::-1] reverses array or sequence - True

#### 6. Which of the following function stacks 1D arrays as columns into a 2D array?

A) column_stack

B) row_stack

C) com_stack

D) All of the mentioned

**Correct Answer: ** column_stack

#### 7. Which of the following method creates a new array object that looks at the same data?

A) view

B) paste

C) copy

D) All of the mentioned

**Correct Answer: ** view

**Explanation : **You can use the view method to create a new array object that looks at the same data as the original array (a shallow copy). <br> Using the copy method will make a complete copy of the array and its data (a deep copy).

#### 8. NumPy developed by

A) Guido van rossum

B) Denis ritchie

C) Travis Oliphant

D) None of the above

**Correct Answer: ** Travis Oliphant

**Explanation : **NumPy (Numerical Python) is an open source Python library developed by Travis Oliphant in 2005.

#### 9. python pandas was developed by______

A) Guido Van Rossum

B) Travis Oliphant

C) Wes McKinney

D) James Gosling

**Correct Answer: ** Wes McKinney

**Explanation : **python pandas was developed by Wes McKinney in 2008.