Data Science Quizz Dive into our tech quiz zone and put your technical skills to the test! Our quizzes cover a wide array of technical topics, perfect for sharpening your knowledge and challenging your understanding. Compete with others, see your rankings, and boost your technical proficiency. Start quizzing today! 1 / 27 1. Which of the following scalars can be converted to other ‘frequencies’ by as typing to a specific timedelta type? Timedelta TimedeltaIndex Timedelta Series All of the mentioned 2 / 27 2. Which of the following random variable that take on only a countable number of possibilities? Discrete All of the mentioned: Continuous Non Discrete 3 / 27 3. Point out the correct statement. Bayesian inference is the use of Bayesian probability representation of beliefs to perform inference None of the mentioned NULL is the standard missing data marker used in S Frequency inference is the use of Bayesian probability representation of beliefs to perform inference 4 / 27 4. Point out the correct statement. Secondary data is original source of data Questions are obtained after data processing steps None of the Mentioned Primary data is original source of data 5 / 27 5. Which of the following value is provided by kind keyword for barplot? bar hexbin none of the mentioned kde 6 / 27 6. Point out the correct statement. Asymptotics are used for inference usually Caret includes several functions to pre-process the predictor data All of the mentioned The function dummyVars can be used to generate a complete set of dummy variables from one or more factors 7 / 27 7. Point out the wrong statement. None of the mentioned Panel is generally 2D labeled, also size-mutable array DataFrame is general 2D labeled, size-mutable tabular structure with potentially heterogeneously-typed columns Series is 1D labeled homogeneously-typed array 8 / 27 8. Which of the following operations are supported on Time Frames? ixmax idxmax none of the mentioned ixmin 9 / 27 9. Which of the following is an example of raw data? all of the mentioned a real-time GPS-encoded navigation file original swath files generated from a sonar system initial time-series file of temperature values 10 / 27 10. Which of the following is the probability calculus of beliefs, given that beliefs follow certain rules? Frequency inference Bayesian inference Frequency probability Bayesian probability 11 / 27 11. The plot method on Series and DataFrame is just a simple wrapper around ____________ none of the mentioned gplt.plot() plt.plotgraph() plt.plot() 12 / 27 12. Which of the following project is used for calling R products from web? OpenCPU OpenDisk All of the mentioned OpenMem 13 / 27 13. Point out the correct statement. DateOffsets cannot be used in construction Timedeltas are differences in times, expressed in difference units All of the mentioned You can construct a Timedelta scalar through various argument 14 / 27 14. Which of the following is used to generate an index with time delta? LeadIndex TimedeltaIndex None of the mentioned TimeIndex 15 / 27 15. Which of the following method can be used to rename categorical data? Categorical.rename() Categorical.rename_categories() None of the mentioned Categorical.mv_categories() 16 / 27 16. Which of the following is prominent python “statistics and econometrics library”? Seaborn Statsmodels None of the mentioned Bokeh 17 / 27 17. Which of the following object you get after reading CSV file? All of the mentioned: Character Vector DataFrame Panel 18 / 27 18. Point out the wrong statement. All of the mentioned Shiny is invented by R folks Time required to create data products using shiny is more Shiny is platform for creating interactive programs embedded in to web page 19 / 27 19. Point out the wrong statement. You cannot pass a timedelta to get a particular value min, max, idxmin, idxmax operations are supported on Series Division by the numpy scalar is true division None of the mentioned 20 / 27 20. Point out the correct combination with regards to kind keyword for graph plotting. ‘area’ for area plots all of the mentioned ‘hist’ for histogram ‘box’ for boxplot 21 / 27 21. Data that summarize all observations in a category are called __________ data. raw none of the mentioned frequency summarized 22 / 27 22. All pandas data structures are ___ mutable but not always _______mutable. semantic, size none of the mentioned value, size size, value 23 / 27 23. Point out the correct statement. Pandas consist of moving window statistics All of the mentioned Pandas consist of set of labeled array data structures Pandas consist of an integrated group by engine for aggregating and transforming data sets 24 / 27 24. Which of the following data is put into a formula to produce commonly accepted results? Raw Synchronized Processed All of the Mentioned 25 / 27 25. Which of the following function can be used to maximize the minimum dissimilarities? minDiss avgDiss all of the mentioned sumDiss 26 / 27 26. Which of the following function can create the indices for time series type of splitting? binTimeSlices newTimeSlices none of the mentioned createTimeSlices 27 / 27 27. Point out the correct statement. None of the mentioned: Data has only quantitative value Data has only qualitative value Data has both qualitative and quantitative value Your score is 0%
