Within the relevant range, variable costs can be expected to: A) vary in total in direct proportion to changes in the activity level. B) remain constant in total as the activity level changes. C) increase on a per unit basis as the activity level increases. D) increase on a per unit basis as the activity level decreases.

The food services division of cedar river amusement park inc. is studying the amount families who visit the amusement park spend per day on food and drink. a sample of 40 families who visited the park yesterday revealed they spent the following amounts: see worksheet 1 for data and answer the following questions: a. organize the data into a frequency distribution, using seven classes and 15 as the lower limit of the first class. what class interval did you select? b. what percent of families spent less than $45? c. what percent of families spent $55 or more? d. how many families spent from $65 to 74.99?