Explanation
The weight of the deliveries is given below;
[tex]\begin{gathered} \text{Weight 1 =}80\frac{3}{4}kg \\ \text{Weight 2 =}50,690,000mg \\ \text{Weight 3}=24,009g \end{gathered}[/tex]Part A: The range is defined to be the distance between the smallest weight and the biggest weight.
But we will need to convert the given values to gram as the question dictates.
[tex]\begin{gathered} \text{Weight 1 = }80\frac{3}{4}kg=80750g \\ \text{Weight 2 = }50,690,000mg=50690 \\ \text{Weight 3 = }24,009g \end{gathered}[/tex]Therefore the range is given as:
[tex]\text{Range = 80750-24009}=56741g[/tex]Part B: The mean is the average of the three delivery weights.
[tex]\text{Mean}=\frac{80750+50690+24009}{3}=51816.33g\cong51.82\operatorname{kg}[/tex]Answer:
[tex]\begin{gathered} \text{Range= 56741.00}g \\ \text{Mean}=51.82\operatorname{kg} \end{gathered}[/tex]