The following code segment is supposed to count the number of times that the number 5 appears in the list values.
counter = 0
____________________
if (element == 5) :
counter = counter + 1
What line of code should be placed in the blank in order to achieve this goal?

Question

The following code segment is supposed to count the number of times that the number 5 appears in the list values.
counter = 0
____________________
   if (element == 5) :
      counter = counter + 1
What line of code should be placed in the blank in order to achieve this goal?

BlackTom AI · Accepted Answer

The task is to fill the blank with a loop that goes through each item in the list values so that the conditional can check if that item equals 5.
Option 1: 'for counter in element :' tries to iterate over 'element', which is just a single value in the loop, and is not defined yet at the point of the loop header. This would be a type of syntactic/semantic error and does not provide a proper iteration over the list.
Option 2: 'for counter in values :' uses a loop variable named 'counter' to traverse the list 'values'. However, the body of the loop references 'element' (if (element == 5): ...). Since 'element' is never defined in this header, the comparison will fail due to a NameError. Even if you could use 'counter' in the body, the code as written would mismatch variable names.
Option 3: 'for element in counter :' attempts to iterate over 'counter', which is the loop variable from some other context or a scalar value, not the list 'values'. This does not accomplish iterating over the list values and would not produce the desired counting behavior.
Option 4: 'for element in values :' correctly iterates over each value in the list 'values', assigning each item to the variable 'element' in turn. Then the subsequent 'if (element == 5):' will be evaluated for every item, allowing the counter to increment precisely when an element equals 5.
So, the most appropriate line to place in the blank is the one that iterates over the list with the correct variable name used in the conditional.

Fal25_CS003C_74229 Ch. 6 Pre-Quiz (Remotely Proctored)

The following code segment is supposed to count the number of times that the number 5 appears in the list values. counter = 0 ____________________ if (element == 5) : counter = counter + 1 What line of code should be placed in the blank in order to achieve this goal?

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