Python enables the programmer to filter a list (also called list comprehension).

The Python lambda function enables a programmer to define "anonymous" functions.

For the list, a, defined below what would be the filtered result?

a = [ 2, 3, 5, 7, 8, 10]
filter(lambda x: not (x % 2), a)

Question

Python enables the programmer to filter a list (also called list comprehension).

The Python lambda function enables a programmer to define "anonymous" functions.

For the list, a, defined below what would be the filtered result?

a = [ 2, 3, 5, 7, 8, 10]
filter(lambda x: not (x % 2), a)

BlackTom AI · Accepted Answer

The question presents a Python list a = [2, 3, 5, 7, 8, 10] and uses a filter with the lambda x: not (x % 2).

First, understand what the lambda does: for any x, x % 2 computes the remainder after division by 2. If x is even, the remainder is 0; if x is odd, the remainder is 1.

Next, evaluate the truth value of not (x % 2) for each element:
- For x = 2: 2 % 2 is 0, so not 0 is True, meaning this element passes the filter.
- For x = 3: 3 % 2 is 1, so not 1 is False, so this element is filtered out.
- For x = 5: 5 % 2 is 1, so not 1 is False, so this element is filtered out.
- For x = 7: 7 % 2 is 1, so not 1 is False, so this element is filtered out.
- For x = 8: 8 % 2 is 0, so not 0 is True, so this element passes the filter.
- For x = 10: 10 % 2 is 0, so not 0 is True, so this element passes the filter.

As a result, only the elements that satisfy the condition are kept, namely the even numbers. The filter operation returns an iterable of these elements, preserving their original order from the input list.

CIS-502-OLH-CRN47621 Optional Practice Final Exam

Python enables the programmer to filter a list (also called list comprehension). The Python lambda function enables a programmer to define "anonymous" functions. For the list, a, defined below what would be the filtered result? a = [ 2, 3, 5, 7, 8, 10] filter(lambda x: not (x % 2), a)

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