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Questions

IS 4487-006 Fall 2025 Final Exam December 10 from 10:30 to 12:30

Single choice

SECUREWHEELS CASE STUDY SecureWheels The next 4 questions are based on this case study below. Jeremy Yashimoto is a data scientist working at SecureWheels, an insurance company headquartered in Boston that specializes in car insurance. Jeremy is working on a variety of projects that will inform marketing and the application process for a new insurance product for motorcycles.   They have been offering the insurance for 6 months and have collected the following data points: Variable Description Sample Value customer_id Unique customer number c15034 origination_date Date when customer was approved for the policy 2025-10-23 customer_age Current age of customer 32 number_of_policies Total number of other policies at SecureWheels  2 monthly_payment Monthly policy premium (payment)  450 number_of_claims Number of insurance claims on the policy since origination 1 motorcycle_type Street/Touring/Dirt/Sport/Scooter Street number_of_citations_5_years Number of police citations in the last 5 years in any vehicle 2 customer_survey_sentiment Positive/Neutral/Negative Neutral SecureWheels has launched a new motorcycle insurance product and collected raw customer data during the first six months. Jeremy, a data scientist, notices inconsistent formatting across payment values and dates when preparing the dataset for modeling. Which transformation tasks best prepare the data?

Options
A.Converting categorical text to numeric codes, standardizing date formats, aggregating daily sales into weekly totals
B.Merging with unrelated company datasets to increase size
C.. Removing all rows with missing values regardless of context
D.Replacing product names with random strings to anonymize
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Step-by-Step Analysis
When preparing data for modeling, the goal is to make the data consistent, machine-readable, and suitable for the chosen algorithms. We can evaluate each option against that goal. Option 1: Converting categorical text to numeric codes, standardizing date formats, aggregating daily sales into weekly totals. This aligns with good data preparation practices: categorical encoding converts non-numeric categories into a numeric form usable by algori......Login to view full explanation

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