Dsci exam 1 - Study guides, Class notes & Summaries

DSCI 300 Exam 1 Actual Questions With Complete Answers Guaranteed Passed

Describe the quantitative analysis approach - correct answer -the process of analyze information to make final decision. Include unpredictable things that affect the decision-making process (weather, state, federal legislation Understand the application of quantitative analysis approach in real situation. The 7 step of QA approach: - correct answer +Define the problem +Develop a model +Acquire input data +Develop a ...

T/F Consider an SRS drawn from a large non-Normal population. When the sample size is large (greater than or equal to 30), the sample mean has approximately a Normal distribution regardless of the population distribution. - correct answer True The standard deviation of a t distribution depends on its degrees of freedom while the mean of a t distribution is always zero. - correct answer true A t procedure can be used for a highly skewed distribution when the sample size is large, roughl...

Business Decision Modeling can be referred to as: - correct answer 1. Management science 2. Operations research 3. Quantitative analysis 4. Operations management Companies using Management Science - correct answer 1. SABRE Decision Technologies (airline reservation system) 2. Signet Bank, Capital One (credit card and financial mgmt) 3. Union Pacific (freight transportation) 4. Ernst & Young (forecasting) A cons...

Statistics - correct answera science dealing with the collection, analysis, interpretation and presentation of numerical data Variable - correct answerthe characteristic of an entity being studied that's capable of taking on different values 1. Descriptive 2. Inferential - correct answerTwo types of statistics? Inductive - correct answerInferential is also known as Descriptive - correct answerGather data on a group or body, analyze data, and use results to reach conclusions about t...

DSCI 4330 Exam 1 With 100% Correct Answers

DSCI-D 351 Exam 1, Questions and answers, 100% Accurate. VERIFIED. In the execution of a MapReduce algorithm, the reduce tasks are always performed after all map tasks have completed. True False - -False The number of hash functions used in MinHash-based LSH has no impact on the accuracy of the similarity estimate. True False - -False The Flajolet-Martin (FM) algorithm is a deterministic algorithm and produces the same estimate for a given stream every time it is run. True False...