Answers
1) Inputs are classified into fixed inputs and variable inputs based on whether they would vary with the production of output or not.
Fixes inputs are inputs don't change as output changes. Variable inputs on the other hand, vary with output.
> Fixed inputs used in the production of output are refrigerator and ice cream mixer.
> Variable inputs used in the production of ice cream are cups, sprinkle toppings and employees.
2) ln order to plot the given data on a diagram, we measure the quantity of labour along the X axis and quantity of ice cream along the Y axis .
3) Marginal product can be found using the following formula
MPL=∆ TP/∆ L
MPL = marginal product of labor
∆TP= change in total product
∆ L = change in labour input
Marginal product of the first worker = 110
Marginal product of the second worker = 90
Marginal product of the third worker. = 70
*Marginal product is showing a decline. It represents the operation of diminishing returns or increasing costs in production process.
As more labour or workers are employed in the production, addition to the total product is decreasing .Further increase in labour eventually lead to a situation lead to a situation of marginal product being negative.