Introduction to Numpy — Practice Quiz
CBSE · Class 11 · Informatics Practices
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Quick Quiz: Introduction to Numpy
0/4Tap an answer to check it instantly. No sign-up needed for these 4.
What does NumPy stand for?
Which command installs NumPy?
Which object is the official name of the NumPy array?
What does np.array([10, 20, 30]) return as an object type?
Sample Questions
What is the index of the last element in the five-element array [10, 9, 99, 71, 90]?
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4
In zero-based indexing, a five-element array has the last element at index 4.
Which statement about a 2-D NumPy array is correct?
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The row-axis is axis-0 and the column-axis is axis-1
For a 2-D array, rows are axis-0 and columns are axis-1.
What is the shape of array1 created by np.array([10,20,30])?
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(3,)
A one-dimensional array with three elements has shape (3,).
What is the size of array3 = np.array([[2.4,3],[4.91,7],[0,-1]])?
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6
array3 has 3 rows and 2 columns, so it has 3 x 2 = 6 elements.
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
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