Compute the Gini index for the Gender attribute.
Consider the training examples shown in Table 4.1 for a binary classification
problem.
The gini for Male is 1 ? 2 × 0.52 = 0.5. The gini for Female is also 0.5.
Therefore, the overall gini for Gender is 0.5 × 0.5+0.5 × 0.5=0.5.
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Answer the following statement true (T) or false (F)
Testing an Android app is called ____________________.
Fill in the blank(s) with the appropriate word(s).
________ is an I/O-performance-enhancement technique—it reduces the number of I/O operations by combining smaller outputs together in memory; the number of physical I/O operations is much smaller than the number of I/O requests issued by the program.
a. Aggregating b. Accumulating c. Amassing d. Buffering
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Indicate whether the statement is true or false