If you start your Jupyter [In] cell with

If you start your Jupyter [In] cell with

%%timeit

:

Group of answer choices

The code on the line will quit running after 5 seconds.

The whole cell will be timed.

That one line will be timed.

The code in the cell will quit running after 5 seconds.

The Correct Answer and Explanation is :

The correct answer is: The whole cell will be timed.

Explanation:

In Jupyter Notebooks, the %%timeit magic command is used to measure the execution time of code. It is important to understand how this command works and what it applies to. When %%timeit is placed at the beginning of a cell, it will time the execution of the entire cell, not just a single line.

1. Timing the Entire Cell:
   The %%timeit magic command times the code in the entire cell by running it multiple times and calculating the average time taken for execution. It does not only measure the time of a single line of code. The %%timeit command works by executing the code in the cell multiple times to get a more accurate measurement of the time it takes for the code to run, as opposed to timeit which, when used on individual lines, runs the code once.
2. How it Works:
   When you use %%timeit, Jupyter will repeatedly run the entire block of code to get an average execution time. For example, if you have multiple lines of code within the cell, each line will be executed within the overall cell execution, and the time will be measured for the full set of operations, accounting for variability in the performance of your code.
3. Execution Limits:
   There is no inherent 5-second limit on the time when using %%timeit. The execution of the code can run as long as necessary until the execution completes or the time limit set by timeit (default number of iterations) is reached. However, if the code has performance issues or takes longer than expected, you might see the execution times fluctuating, and in some cases, the notebook may stop the process if there’s a more serious performance issue (but this is not directly related to the %%timeit command).

So, to summarize, when %%timeit is used at the start of a Jupyter cell, it measures the execution time of the whole cell, including all of its lines of code.