Variance is a measure of how widely the points in a data set are spread about the mean. To calculate variance by hand, you take the arithmetic difference between each of the data points and the average, square them, add the sum of the squares and divide the result by one less than the...
Businesses have many costs they need to consider when trying to make a profit. One of the most important concepts to understand is the difference between fixed andvariable costs. Don’t stress if you do not clearly understand the concept of the two and the difference between them. We are he...
Explain how to compute support of distribution. Support of a Distribution: When we are working with some kind of situation and recording what events occur, it is important to have an idea of what events could even occur in this situation. For instance, we cannot find the probability of some...
How do you approach finding the value of N at which the two algorithms reach the same efficiency? I would prefer to not be given the actual value, but how to approach the problem. I plugged in 0, 1, 4, 10, and 67 (the choices given) for N^3 and 6N^2, but in every case N^...
The point being that virgin visitors, and regular visitors are 2 very distinct populations, and you need to be very clear which you want to test. You may even want to test both; i.e. compute the metric as described above for "virgins", and "regulars". You will probably find ...
1-C14*C14evaluates to approximately 0.79531473. SQRT(1-C14*C14)returns approximately 0.891804199. The finalt valueis approximately 1.242651665. Compute the P-Value for Correlation: Use the following function: =T.DIST.2T(D14,B14-2) Here,
I struggle to find a way to compute the p-value for the area under a receiver operator characteristic (ROC). I have a continuous variable and a diagnostic test result. I want to see if AUROC is statistically significant. I found many packages dealing with ROC curves: pROC, ROCR, caToo...
The values from which to what it changes, or whether it does at all, do not make difference. let onCompleted; // This would be a property of some request object but that's not needed for the demo function takeHoursToCompute() { console.log('computing'); return 'Done'; } function ...
For each law, we use OLS to compute the DD estimate of its "effect" as well as the standard error for this estimate. The standard errors are severely biased: with about 20 years of data, DD estimation finds an "effect" significant at the 5% level of up to 45% of the placebo laws....
VMs, as well as data housed in scale-out on-premises storage, and move them to public cloud compute and storage services. In this case, workloads won't require any major refactoring, and the cloud services will have relatively simple pricing models. Migration costs are easy enough to ...