Final answer:
The needed information to formulate a question about age and gender depends on the specific details you want to know, such as average age, variation in age, most common gender, or the distribution of ages.
Step-by-step explanation:
The question you're asking about age and gender at a play requires some statistical information to formulate a meaningful question. Depending on what you want to know, different pieces of information might be relevant. For instance, if you're interested in the average age and the most common gender of attendees, you would need the mean age and mode gender. However, if you're looking to understand the spread of ages and central tendency of the data, you might want to know the median age and range of ages. The frequency distribution of ages could help to see how many people of each age attended, while the standard deviation of ages would provide insight into how much the ages vary from the mean. Choosing between these depends on the specific question you wish to ask about the relationship between age and gender in the context of play attendance.