a) Provide an example of a function call where the provided code will correctly return True (i.e. a True Positive) b) Provide an example of a function call where the provided code will correctly return False (i.e. a True Negative) c) Provide an example of a function call where the provided code will incorrectly return True (i.e. a False Positive)

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Hef sharks_minnows (minnows, sharks):
shark_count = 0
minnow_count = len (minnows)
for i in range(minnow_count):
curr_shark_height = minnows [i]
if curr_shark_height is not None:
minnows [i] = None
for j in range (i + 1, minnow_count):
if minnows [j] == curr_shark_height:
minnows [j] = None
curr_shark_height -- 1
shark_count += 1
return shark_count <= sharks
The provided code is imperfect, in that it sometimes returns True
when it should return False, and sometimes returns False when it
should return True.
(a) Provide an example of a function call where the provided code
will correctly return True (i.e. a True Positive)
(b) Provide an example of a function call where the provided code
will correctly return False (i.e. a True Negative)
(c) Provide an example of a function call where the provided code
will incorrectly return True (i.e. a False Positive)
(d) Provide an example of a function call where the provided code
will incorrectly return False (i.e. a False Negative)
Transcribed Image Text:Hef sharks_minnows (minnows, sharks): shark_count = 0 minnow_count = len (minnows) for i in range(minnow_count): curr_shark_height = minnows [i] if curr_shark_height is not None: minnows [i] = None for j in range (i + 1, minnow_count): if minnows [j] == curr_shark_height: minnows [j] = None curr_shark_height -- 1 shark_count += 1 return shark_count <= sharks The provided code is imperfect, in that it sometimes returns True when it should return False, and sometimes returns False when it should return True. (a) Provide an example of a function call where the provided code will correctly return True (i.e. a True Positive) (b) Provide an example of a function call where the provided code will correctly return False (i.e. a True Negative) (c) Provide an example of a function call where the provided code will incorrectly return True (i.e. a False Positive) (d) Provide an example of a function call where the provided code will incorrectly return False (i.e. a False Negative)
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