These changes to mean temperature and variance are also illustrated by comparing the frequency distributions of autumn daily-mean temperature anomalies, for land grid-points in latitudes 55°–80° N, ...

Standard deviation and variance are two basic mathematical concepts that have an important place in various parts of the financial sector, from accounting to economics to investing. Both measure the ...

This paper is concerned with multi-period asset–liability mean–variance portfolio selection with an uncertain exit time. By employing the mean-field formulation to this problem which involves ...

Our results reveal a mean–variance innovation tradeoff: a feasibility-then-novelty sequence leads to selections with higher mean innovation, whereas a novelty-then-feasibility sequence yields ...

A stock's historical variance measures the difference between the stock's returns for different periods and its average return. A stock with a lower variance typically generates returns that are ...

Stock's historical variance measures its return stability over time. Higher variance indicates greater return unpredictability and risk. Calculate variance using Excel to simplify the process for ...