Discover how probability distribution methods can help predict stock market returns and improve investment decisions. Learn ...

R package, implementing a three steps variable selection procedure based on random forests. Initially developed to handle high dimensional data (for which number of variables largely exceeds number of ...

A quantum physics lesson for gamblers who talk to slot machines, and a Nobel Prize-winning proof that the universe doesn't ...

The random drug and alcohol testing rate for FMCSA-regulated workers hasn't been changed since 2020. Plus, FMCSA proposes ...

The total area under the curve must equal 1, representing the fact that the probability of some outcome occurring within the entire range is certain. \[\int_{-\infty}^{\infty}f\left(x\right)dx=1\] ...

We’ve all been there, staring down the silence of a conversation with no clear path. This is where a set of random questions to ask comes in handy. Whether you’re among friends, a partner, or complete ...

Abstract: Moments of continuous random variables admitting a probability density function are studied. We show that, under certain assumptions, the moments of a random variable can be characterized in ...

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...

Apply arithmetic mean of frequency distribution to find the expected value of a random variable The expected value of discrete random variable as summation of product of discrete random variable by ...

It's pretty transparent what's happening here, but you've got to admire the effort. Again, it only makes sense for Sony to do this — it's essentially free marketing for PlayStation and its games. Are ...

Forecasting for any small business involves guesswork. You know your business and its past performance, but you may not be comfortable predicting the future. Using Excel is a great way to perform what ...