The Sampling Distribution of the Sample Mean Is Shown Below

question 49

Multiple Choice

The sampling distribution of the sample mean is shown below. $$\begin{array} { c | c c c c c } \bar { x } & 4 & 5 & 6 & 7 & 8 \\\hline \mathrm { p } ( \bar { x } ) & 1 / 9 & 2 / 9 & 3 / 9 & 2 / 9 & 1 / 9\end{array}$$ Find the expected value of the sampling distribution of the sample mean.

• A) 5
• B) 4
• C) 6
• D) 7

---

Definitions:

Reduced Birth Weight

Reduced birth weight refers to infants born with a weight less than the average for their gestational age, which can be linked to various prenatal and maternal factors.

Cocaine Use

The act of consuming cocaine, a powerful stimulant drug, which can have serious health consequences and lead to substance dependency.

Pregnancy

The condition or period of being pregnant, a biological state in which a woman carries and nurtures a developing fetus within her uterus.

Teratogens

Agents or factors that can cause congenital anomalies or increase the incidence of an abnormal development in an embryo or fetus.