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?
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?
Which of the following statistical methods requires two or more categorical variables?
Which of the following data manipulation techniques is an example of a logical function?
Refer to the exhibit. A data analyst needs to calculate the mean for Q1 sales using the data set below: Which of the following is the mean?
