Consider a random variable Y. What is the difference between the sample average and the population mean? The population mean is a true measure of the central tendency of the distribution of Y whereas the sample average is an estimator of the population mean. Both the population mean and the sample average are estimators of the central tendency of the distribution of Y. The sample average is a true measure of the central tendency of the distribution of Y whereas the population mean is an estimator of the sample average. Both the population mean and the sample average are true measures of the central tendency of the distribution of Y.

The population mean is a true measure of the central tendency of the distribution of Y whereas the sample average is an estimator of the population mean.

Step-by-step explanation:

Out of all the statements given the correct statement is:

The population mean is a true measure of the central tendency of the distribution of Y whereas the sample average is an estimator of the population mean.

A sample mean is calculated from a dataset that is sampled out of the entire population data. And this sample mean is used to estimate or predict the population mean

where did you get them? if you picked from the grass, is is probably poisonous.

step-by-step explanation:

la parábola es el lugar

geométrico en el cual los puntos tienen una distancia idéntica, equidistantes,

de un punto denominado foco, f, y una recta denominada directriz

el radio vector de una

parábola es el segmento que existe entre un punto cualquiera y el foco.

por la ecuación se observa

que la parábola abre hacia la derecha, por lo cual podemos usar las siguientes fórmulas

la ecuación ordinaria de la

parábola es y^2 = 4px, donde p es la longitud desde el vértice de la parábola al

foco.

la fórmula de la directriz

es x + p = 0

resolviendo:

y^2-9x = 0

y^2 = 9x

4p = 9, entonces p = 9/4

entonces el foco tendrá la

coordenada f(9/4,0)

la directriz vendrá

expresada por

x + p = 0

x = -p

x = -9/4

el problema indica que la

ordenada es igual a 6, entonces

(6)^2=9x

x = 36/9

x = 4

entonces el punto al cual

hay que obtener la distancia será p(4,6)

calculando se tendrá: pf = 

pf = 6,25 u

ver más en -

step-by-step explanation: