Background Understaffing by nursing staff in hospitals is linked to patients coming to harm and dying unnecessarily. There is ...

Objective Atrial fibrillation (AF) has emerged as a common condition in older adults. Cardiovascular risk factors only explain about 50% of AF cases. Inflammatory biomarkers may help close this gap as ...

A typical example of a random variable is the outcome of a coin toss. Consider a probability distribution in which the outcomes of a random event aren't equally likely to happen. Y could be 0 ...

Although the definition of acute respiratory distress syndrome (ARDS) has undergone numerous revisions aimed at enhancing its ...

What Is a Bell Curve? A bell curve is a common type of distribution for a variable, also known as the normal distribution. The term "bell curve" originates from the fact that the graph used to ...

A normal distribution has two parameters, the mean $\mu$, and the variance $\sigma^2$. The mean can be any real number and the variance can be any non-negative number. NOTATION: "\(X\sim N(\mu, ...

The Central Limit Theorem (CLT) says that the distribution of a sum of independent random variables from a given population converges to the normal distribution as the sample size increases, ...

Traditionally, screening for latent TB infection (LTBI) is done using the tuberculin skin test (TST). Interferon-gamma release assays (IGRAs) are now increasingly being used for diagnosis of LTBI, but ...