This certification validates practical skills in data management and analysis, including data preparation, analysis, governance, and communicating reliable insights. It is intended for professionals who build or operate data-driven solutions.
You are writing a function to validate battery voltage readings. The rules are:
If the reading is "MISSING" or None, return "Missing".
If the value is below 2.5 or above 4.2, return "Outlier".
Otherwise, return "Normal".
Which version correctly implements this logic using the most robust conditional and nested structures? Select the best answer.
An online retailer collects customer reviews, order transaction logs, and product ratings.
Which of the following correctly classifies these types of data? Select the best answer.
Which of the following code snippets will output True for both print functions by correctly identifying the type of each variable and performing valid operations?
Which task is traditionally or typically performed by a data analyst, and not by a data scientist or analytics specialist? Select the best answer.
You are given two lists representing daily page views and sign-ups on a website: views = [120, 130, 128, 700, 115, 123, 119, 680, 122] signups = [12, 15, 13, 50, 11, 14, 10, 55, 13]
You want to:
remove outliers (views > 600), and
calculate correlation between the cleaned lists.
Which code accomplishes this correctly? Select the best answer.