An analyst has generated a report that includes the number of months in the first two quarters of 2019 when sales exceeded $50,000: Which of the following functions did the analyst use to generate the data in the Sales_indicator column?
Answer(s): B
While reviewing survey data, an analyst notices respondents entered “Jan,” “January,” and “01” as responses for the month of January. Which of the following steps should be taken to ensure data consistency?
Answer(s): C
Which of the following data cleansing issues will be fixed when a DISTINCT function is applied?
A county in Illinois is conducting a survey to determine the mean annual income per household. The county is 427sq mi (2.65q km). Which of the following sampling methods would MOST likely result in a representative sample?
Answer(s): D
Which of the following statistical methods requires two or more categorical variables?
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