Online worksheet ยท 2 of 4
An index identifies a position - Online practice 2
Read the information, then answer the questions. An adult may read the instructions aloud. Show your working where asked.
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Python list: scores = [8,3,7,5]. Non-negative indices start at 0 and must be less than len(scores). The length counts items, not the last index. A separate empty list has length zero and must not be assumed to contain a first item.
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- For [8,3,7,5], give scores[2], len(scores), and the final valid non-negative index.
- What would scores[len(scores)] do for this four-item list?
- How should code change before reading the first score if this list may become empty?
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