What cross-tabulating can tell us
Reports of opinion polls seldom include insights drawn by correlating responses to two or more survey questions
View ArticleOne year on, Modi govt performance has matched expectations: Poll
Here are the results of a survey done by Mint in partnership with Ipsos on the industry’s perception of Narendra Modi’s performance
View ArticleWhat the flooding of the Nile says about the Nifty
While Nifty is positively serially correlated over the very short term, if we look at slightly longer time periods, we find that the index is actually mean reverting
View ArticleThe probability of foul play in Vyapam deaths
Analysis of deaths over the past 5 years shows the number of recent deaths linked to the case is highly unusual
View ArticleIndia’s best and worst telecom firms
A Mint-instaVaani survey shows that Aircel is India’s best telecom company, while the worst are Reliance Communications, MTNL and Idea
View ArticleUnderstanding exponential growth
Fast growth is neither a necessary nor sufficient condition for growth to be called exponential. For that to happen, it should follow a specific pattern
View ArticleHow have RBI’s new rules on ATM usage affected banking?
A look at the result of the curbs on minimum number of free non-home-bank ATM transactions per month
View ArticleUsing Bayes’ Theorem to understand extreme opinions
The basic principle of Bayes’ Theorem is to take a set of ‘prior beliefs’ and see how they change in the face of given evidence
View ArticleWhy the Bihar polls are too close to call
The problem with the Bihar elections is that with a massive redrawing of battle lines, previous elections are all but unusable
View ArticleWhy Raghuram Rajan may hold rates
A cut in interest rates may not actually transmit to increased lending by banks and financial institutions
View ArticleBihar polls: Straddling a two-party contest
Pollsters are collectively overestimating chances of a close contest between the NDA and the Janata Alliance
View ArticleIt’s time discoms got their financial act together
That the finances of discoms are in a poor shape shows that a lot is yet to be done on the pricing front
View ArticlePriors, correlation, information content and protests
A statistical look at how the govt should react to writers returning awards in protest against intolerance
View ArticleThe importance of data dissemination
Thanks to the efforts of customs dept and an open data enthusiast, we can look at trade at a more granular level
View ArticleLessons from Turkish polls on minority representation
In order to gain entry into parliament, HDP has had to broaden its agenda to gain enough non-Kurd acceptance
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Bihar results: why did the exit polls get it wrong?
Poor estimates of Grand Alliance’s effectiveness and NDA’s inconsistent performance among the major factors
View ArticleWhataboutery and information content
Paris attacks have got more coverage than those in Beirut due to the higher information content of the former
View ArticleExit polls continue to overestimate odds of a close election
Exit polls, like the opinion polls before them, have overestimated the odds of a close finish in the Bihar assembly elections
View ArticleExit polls continue to overestimate odds of a close election
Exit polls, like the opinion polls before them, have overestimated the odds of a close finish in the Bihar assembly elections
View ArticleWhy Delhi’s bus service is more expensive than that of Chennai
Not only does Delhi have a higher cost of operations compared with other cities, its utilization is also poorer
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