Find the Weighted Mean of a Set of Values A) 22
B) 38

question 35

Multiple Choice

Find the weighted mean of a set of values. Round to the nearest tenth. $$\begin{array} { | c | c | } \hline \text { Value of } x & \begin{array} { c } \text { The weights to } \\\text { the } x \text { values }\end{array} \\\hline 3 & 20 \\\hline 4 & 34 \\\hline 2 & 47 \\\hline 1 & 54 \\\hline\end{array}$$

• A) 2.2
• B) 38.8
• C) 15.5
• D) 2.5

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Definitions:

Bell-Shaped Curve

A graphical representation of a normal distribution, indicating that most occurrences happen near the mean, with fewer observations noted at the extremes.

Coin Flips

A simple randomization technique or decision-making tool where the outcome of a coin toss is used to choose between two alternatives.

Most Probable

Referring to an event or outcome that has the highest likelihood of occurring compared to other possibilities.

Statistical Significance

A measure indicating that the likelihood of an observed effect or difference in a study is not due to chance alone.