Which of the Following Statements Is False

question 2

Multiple Choice

Which of the following statements is false?

• A) An xe "n-grams"n-gram is a sequence of n text items, such as letters in words or words in a sentence. In natural language processing, n-grams can be used to identify letters or words that frequently appear adjacent to one another.
• B) For text-based user input, n-grams can help predict the next letter or word a user will type-such as when completing items in IPython with tab-completion or when entering a message to a friend in your favorite smartphone messaging app. For speech-to-text, n-grams might be used to improve the quality of the transcription.
• C) You can pass the keyword argument n to TextBlob's ngrams method to produce n-grams of any desired length.
• D) The following code uses TextBlob's ngrams method to create all the trigrams from a sentence. The code is actually incorrect-it should have used the keyword argument n=3 to TextBlob's ngrams method:
• In [1]: from textblob import TextBlob
• In [2]: text = 'Today is a beautiful day. Tomorrow looks like bad weather.'
• In [3]: blob = TextBlob(text)
• In [4]: blob.ngrams()
• Out[4]:
• [WordList(['Today', 'is', 'a']),
• WordList(['is', 'a', 'beautiful']),
• WordList(['a', 'beautiful', 'day']),
• WordList(['beautiful', 'day', 'Tomorrow']),
• WordList(['day', 'Tomorrow', 'looks']),
• WordList(['Tomorrow', 'looks', 'like']),
• WordList(['looks', 'like', 'bad']),
• WordList(['like', 'bad', 'weather'])]

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Definitions:

Experimental Group

This is the group in an experiment that receives the variable being tested.

Control Group

In an experiment, the group that does not receive the treatment being tested, used as a benchmark to measure how the other tested subjects do.

Placebo Treatment

A simulated or otherwise medically ineffectual treatment given to deceive the recipient for psychological or experimental reasons.

Random Error

Variability in data that arises due to chance and affects measurements in unpredictable ways.