Recognizing anomaly types
Which of the following is best described as a collective anomaly?
Answer the question
A $10,000 transaction made using a credit card on an online auction site.
A footfall of 600 visits to a large computer store on a Saturday afternoon.
A customer showing twice the usual spending behavior in mid-December.
A high volume of server requests from different users using an outdated web browser.
Take Hint (-15xp)