IT Exam Items Repository

What type of error has occurred when a data scientist records a measurement incorrectly after viewing the correct value on the measuring device?
ITExamAnswers Editorial Team asked 4 years ago • 
What are two types of supervised machine learning algorithms? (Choose two.)
ITExamAnswers Editorial Team asked 4 years ago • 
What is the goal of linear regression?
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When a number of items are grouped together, which type of machine learning algorithm can determine which items in the group predict the presence of other items?
ITExamAnswers Editorial Team asked 4 years ago • 
In a linear regression, which variable is also known as the target or response variable?
ITExamAnswers Editorial Team asked 4 years ago • 
If the results of a study do not align with previous studies, what question should an evaluator ask?
ITExamAnswers Editorial Team asked 4 years ago • 
What is the most commonly used statistical method for analyzing data?
ITExamAnswers Editorial Team asked 4 years ago • 
When you follow the scientific method, which step would occur after testing the hypotheses through experimentation?
ITExamAnswers Editorial Team asked 4 years ago • 
A data analyst performs a correlation analysis between two quantities. The result of the analysis is an r value of 0. What does this mean?
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Which term is used to describe a graph of distribution where the peak is left of center or right of center?
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What is a purpose of using the head Linux command?
ITExamAnswers Editorial Team asked 4 years ago • 
What relationship is an example of causation?
ITExamAnswers Editorial Team asked 4 years ago • 
What is a measurement of central tendency that is also known as the average?
ITExamAnswers Editorial Team asked 4 years ago • 
A data analyst studies two variables over a period. Data set A is (100, 90, 81, 73) and data set B is (3500, 3150, 2835, 2552). The Pearson r value between these two variables is 0.99. Which statement describes the correlation between them?
ITExamAnswers Editorial Team asked 4 years ago • 
Which file type is most similar to a dataframe in pandas?
ITExamAnswers Editorial Team asked 4 years ago • 
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