Question

the scores and their percent of the final grade for a statistics student are given. what is the students weighted mean score?

\

$$\begin{tabular}{lcc} & score & percent of final grade \\\\ homework & 83 & 10 \\\\ quiz & 86 & 5 \\\\ quiz & 95 & 5 \\\\ project & 95 & 45 \\\\ final exam & 87 & 35 \\end{tabular}$$

the students weighted mean score is \\\\
(simplify your answer. round to two decimal places as needed.)

Explanation:

Identify given values and formula

$$
LATEXBLOCK0
$$

Calculate the sum of products and sum of weights

$$
LATEXBLOCK1
$$

Compute the weighted mean

$$
LATEXBLOCK2
$$

Answer:

The student's weighted mean score is <blank>90.55</blank>