Children are exposed to many colours in their environment Some babies show a striking preference for just one colour, while others will like a few colours. But these particular findings are only preliminary, on about 30 babies aged between four and nine months. We are collecting more data, she said.
Linear regression attempts to model the relationship between two variables by fitting a linear equation to observed data. One variable is considered to be an explanatory variable, and the other is considered to be a dependent variable.
A function defines one variable in terms of another. The statement y is a function of x (denoted y = y(x)) means that y varies according to whatever value x takes on.A causal relationship is often implied (i.e. x causes y), but does not *necessarily* exist. is twice the value of x, for every value x takes on. If x = 5, then. y = 2 x 5 = 10. If x = -0.2, then. y = 2 x (-0.2) = -0.4. Y isn't always (or even usually) a function of just one variable. Y can vary according to an infinite number of variables.