TP (True Positive) – Thepositiveinstancescorrectlyclassified. FN (False Negative) – Thenegativeinstancesincorrectlyclassified. How is True Positive Rate Calculated? Here’s a step-by-step guide to calculating the true positive rate: Gather the required data. Find the number of true positives (TP...
The University as BusinesA number of colleges and universities have announced steeptuition increases for next year much steeper than the current, very low rate of inflation. They say the increases are needed because of a loss in value of university endowments h...
Triangulation– Using third parties (other family members, experts, institutions) to enforce control. (“Even the media says this isn’t true!”) Victim-Perpetrator Reversal– Claiming that the dissenter is the one causing harm, not the one exposing it. (“You’re destroying our family by bri...
healthy heart does not tick evenly like a metronome, but instead, when looking at the milliseconds between heartbeats, there is constant variation. In general, we are not acutely aware of this variation; it’s not the same as the heart rate (beats per minute) increasing and decreasing as we...
The Sortino ratio serves a similar purpose to the more popular Sharpe ratio, but it focuses on downside risk.
Headline CPI and PPI.This is the total inflation of the basket of goods and services tracked by the U.S. government. The basket can change slightly over time. Core CPI and PPI.This is the inflation rate after stripping out volatile energy and food prices that can cause the headline number...
What does having a positive rate of time preference have to do with positive interest rates?Interest rate:In economics, the interest rate is defined as a proportion of an outstanding loan due per period charged by the lender to the borrower as interest. Usually, th...
📚 第1篇 Is technology making people lazy? Recently, the topic of the impact of technology has been brought into focus. According to a recent survey conducted by CCTV, a high proportion of 84.7 percent of people admitted that...
Vega(V) represents the rate of change between an option's value and the underlying asset'simplied volatility. This is the option's sensitivity to volatility. Vega indicates the amount an option's price changes given a 1% change in implied volatility. For example, an option with a Vega of ...
Diversification strives to smooth out unsystematic risk events in a portfolio, so the positive performance of some investments neutralizes thenegative performanceof others. The benefits of diversification hold only if the securities in the portfolio are not perfectlycorrelated—that is, they respond diffe...