Anotherreport estimates that, given the high costs associated withchildhood ETS exposure, reducing parental smoking by15% could save $1 billion in direct medical costs at theprenatal and neonatal levels and into childhood.The authorsâ survey of interventions and theireffectiveness in this area is encouraging.
adjective. noun. The definition of normal is regular, natural or staying with the general standard. An example of normal is a human temperature of 98.6. Normal is defined as the usual or the average. An example of normal is the general amount of goods that a company makes each year.
In probability theory, the normal (or Gaussian) distribution is a very common continuous probability distribution. Normal distributions are important in statistics and are often used in the natural and social sciences to represent real-valued random variables whose distributions are not known.he normal distribution is a subclass of the elliptical distributions. The normal distribution is symmetric about its mean, and is non-zero over the entire real line.