Final answer:
The function calcaverage() typically returns a single value, the computed average of input values, which corresponds to choice b.
Step-by-step explanation:
The calcaverage() function, based on typical programming conventions, is likely designed to return a single value representing the average. Therefore, the correct answer to the question "How many items are returned from calcaverage()?" would be b. The function collects input values, computes the average, and returns this single numeric value. Despite different input values, the output remains just one item, the computed average.
For example, when using a graphing calculator to compute one-variable statistics, you would typically enter the data into a list, then select Stat, Calc, and 1-Var Stats. This process will yield the average among other statistics, but only the average will be returned by a function specifically called calcaverage(). The calcaverage() function is not defined in the given information, so I cannot provide an exact answer for this question. However, based on the options provided, the correct answer is d. It depends on the input values. The number of items returned from the function can vary based on the input given to the function.