Total Lines of Code Number of Lines of Code Programmer Written Requiring Edits Liwel Andrew Jaime 23,789 17,962 31,025 26,050 19,586 24,786 4,589 2,780 12,080 3,780 1,890 4,005 5,785 1,052 3,872 4,125 Sherae Binny Roger Dong-Gil Alex Jay Vivek 24,030 14,780 30,875 21,546
Code Churn. Code Churn is a common metric used to measure the
efficiency and productivity of software engineers and computer
programmers. It's usually measured as the percentage of a
programmer's code that must be edited over a short period of time.
Programmers with higher rates of code churn must rewrite code more
often because of errors and inefficient programming techniques. The
following table displays sample information for 10 computer
programmers.
a. Use the data in the table above and the relative frequency
method to determine probabilities that a randomly selected line of
code will need to be edited for each programmer.
b. If you randomly select a line of code from Liwei, what is the
c. If you randomly select a line of code from Sherae, what is the
probability that the line of code will not require editing?
d. Which programmer has the lowest probability of a randomly
selected line of code requiring editing? Which programmer has the
highest probability of a randomly selected line of code requiring
editing?
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