Question
Which of the following best describes the purpose of
data wrangling?Solution
Data wrangling, also known as data munging, involves transforming and cleaning raw data into a structured format suitable for analysis. This process includes handling missing values, correcting inconsistencies, standardizing formats, and often requires domain knowledge to ensure accuracy and relevance. Effective data wrangling makes analysis more efficient and reliable by ensuring the data is clean and usable. Option A is incorrect because storing raw data does not involve any transformation. Option B is incorrect as model building follows data wrangling. Option D is incorrect because creating dashboards is for data presentation, not wrangling. Option E is incorrect because KPIs are derived post-wrangling and analysis.
What will be the next number in the series?
2, 7, 23, 70, ?
56. 23 45 89 177 363 705
...5 29 ? 569 1703 3401
...120 119 ? 352 2464 2455
...Select the number from among the given options that can replace the question mark (?) in the following series.
2, 6, 12, 20, ?, ?
97 106 121 138 157 180
...2, 12, 36, 80, ?, 252
102 153 306 765 ? 8032.5
...D irection: Which of the following will replace ‘?’ in the following series
300, 300, 301, 303, ‘?’, 324, 364
...261 256 246 231 211 ?
...
