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### Course: Statistics and probability>Unit 6

Lesson 1: Statistical questions

# Statistical and non statistical questions

A statistical question is one that can be answered by collecting data and where there will be variability in that data. For example, there will likely be variability in the data collected to answer the question, "How much do the animals at Fancy Farm weigh?" but not to answer, "What color hat is Sara wearing?". Created by Sal Khan.

## Want to join the conversation?

• In , it is said that the question "Find the difference in rainfall in Seattle and Singapore in 2013" is not a statistical question. However, to find the amount of rainfall, you have to measure the rainfall on each day. It is data with variability, so shouldn't it be a statistical question?
• If the question asked to compare the total rainfall in 2013 to the average over that past five years, then that would be a statistical question. Look for key words for measures of central tendency and trends, rather than computation of exact amounts.
• Would a non-statistical question like, "What is 4x5?" become a statistical question if someone had the wrong answer?
• I believe it could be a statistical question if it were something like this:
"How many 3rd graders got the question, 'What is 4 x 5?' wrong on this year's state test compared to last year?"
These types of questions really depend a lot on the exact words used to express the question.
• Are categorical questions statistical questions? For example, "What are the color of eyes of the 6th grade class?" While the answer is qualitative rather than quantitative, and would use a bar graph rather than a histogram, is it still a statistical question since it has variability?
• Statistical, if depends on who you ask. I have brown eyes but I can bet that the next person has blue. But then again, can't all questions have variation in them?
• Hi Do statistical questions have an origin?
• italics
• I am greatly pleased on how kahn works and how thinghs are generated ILL let you know the usernames and the filter you guys use is broken i just had noticed this today at 2/12/2021

THIS is urgent:
• Really? What doesn't work? I've been here for years and I've seen many updates but I'm fairly certain everything works.
• In the last question, even with clause like "in 2013", it might still be a statistical question, right? since, to find the highest paid professor, we need to know the salary of every professor in that department in that university. From that we take the maximum from that list. Isn't this similar to taking the mean from the list? And would it be a statistical question then? Please correct me if I am wrong.
• Mean does not equal the max. Also, there would only be one highest paid professor, even if there are other professors in the university. This would be like saying "How old are you?", is s statistical question because you need to find every person in the world and take "you" from that list. So no, this is not a statistical question.
• At , is it only a statistical question if you mention "in 2013" before you added it in the last example, or can it be statistical either way?
• Without the in 2013, it is kind of a complicated case. You have to think about what you want to consider. if you say throughout the history of the schools or since 1800, then this does become a statistical question no matter how you look at it. However, considering other things (like in 2013), you have concrete numbers that you can check the difference of, making it not a statistical question