Causation in Statistics In statistics,correlationcan be quantified and given a number where zero is “no correlation” and 1 is “perfect correlation.” Perfect correlation exists and it is pretty much indistin
In this post, you’ll learn how to spot misleading statistics and data. We’ll look at the common ways they mislead and how to determine when data can bear the weight of critical decisions. What is a Misleading Statistic? Misleading statistics refer to data points, figures, or visual repres...
You have to rely on experience, knowledge about the subject of interest, and common sense to determine if a data point is an outlier and how to handle it.Choosing Python Statistics Libraries There are many Python statistics libraries out there for you to work with, but in this tutorial, ...
You have to rely on experience, knowledge about the subject of interest, and common sense to determine if a data point is an outlier and how to handle it.Choosing Python Statistics Libraries There are many Python statistics libraries out there for you to work with, but in this tutorial, ...
Using the formula above, John can determine the correlation between the prices of the S&P 500 Index and Apple Inc. First, John calculates the average prices of each security for the given periods (Step 2): After the calculation of the average prices, we can find the other values. A summar...
I always take it with a grain of salt, at least initially. It might be true, but one survey or poll is usually not enough to establish anything. It is only through replication of the results, which often never happens that you can really determine if a statistical finding is in fact tr...
Sometimes, the “why” will be answered with direct questions in the survey and sometimes with multiple-choice boxes. Other times, it will be up to you as the survey analyst to determine causation, if possible. And this is where we need to be careful. It's easy to become sucked into ...
The idea is that we can run through several scenarios, or policies, to determine if some are better than others and thus optimize our decision making process (assuming the optimal policy is also feasible). Typically, actions, (state) transitions, and associated rewards will not be are not ...
Each user interacts with your product in a slightly different way. Even if you have a standard user flow, how users engage with your site creates a unique data fingerprint, which can be analyzed to find patterns. Sift through the data to determine if there are similar behaviors that emerge....
World Bank,2014). These were publicized as early signs of EVD in a precautionary mode from the outset of the declared emergency in West Africa, signalling the public to report to a clinic at once with any of these symptoms. No laboratory test was required to determine a case of Ebola. Ye...