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Q1 Data Exploration (9 points) Use the dataset “fraud_detection” for this question. a.(3 points) What is the overall proportion of fraudulent vs. non-fraudulent transactions? Is the dataset imbalanced? b. (3 points) Compare the percentage of fraud cases with respect to the type of device used for transaction? Use also a visual approach to compare the percentage values. Which devices are more vulnerable? c. (3 points) If we group transactions by Transaction_Hour, can we identify fraud-prone time windows? Also use a visual apporach for your analysis.

Name of Test : Unit 8 & 9 Summative Assessment Duration of Test : 60 minutes The next steps will guide you through : 360° room scan Checking the annotations of your papers used Clearing your calculator.

Questions must be Multiple Choice (one answer choice) or Multiple Answer (more than one answer choice). If the question is multiple, answer choices can not be “A or B” etc (This makes it difficult when answer choices are shuffled). A choice *can* be “all of the above.”  Use the following format for credit. Ensure that your correct answer is CLEARLY MARKED for credit. Question: What color is the grass Answers: 1) Green

IV. Kultur A. Kultur im Bild: Wie lebt man gesund? Was gehört zu einem gesunden Leben?  Was muss man tun, um fit zu bleiben? Schreiben Sie fünf Sätze über das Thema: „Wie lebt man gesund in Deutschland?“ Denken Sie an Ernährung, Übergewicht, Stress, Sport, Krankheit und Fitness.   

B. Die Körperteile. Nennen Sie acht (8) der markierten Körperteile. Schreiben Sie die Nummer, den bestimmten Artikel und die Pluralform auf.   Nummer singular plural 1 der Kopf die Köpfe

During the introduction stage of the market life cycle________ are unfamiliar to consumers;________ are not well-defined.

When firms expand into global markets, they are faced with the choice of reducing costs and/or adapting to the local market. When high pressures exist to lower costs, companies should choose a(n)________ strategy or________ strategy in order to compete in the global marketplace.

Amazon, a multinational company, has doubled the local-language content it produces for its Prime Video platform each year since 2017. This is an example of a(n)________ strategy.

Behavioral controls are aspects of strategic change that involve finding the appropriate________ and________ among the culture, rewards, and________ of the firm.

Polaris, a manufacturer of snowmobiles, motorcycles, watercraft, and off-road vehicles, shares manufacturing operations across its businesses. It also has a corporate research and development facility and staff departments that support all the Polaris operating divisions. This is an example of creating value by using________ diversification to acquire________ of________.