Exploring Statistical vs. Non-Statistical Questions

What is not a statistical question?

• What is the average age of viewers?

• How old are you?

• Do dogs run faster than cats?

• How old are the viewers of this video in 2013?

What helps to answer a statistical question about a group's age?

• Guessing

• Asking each individual

• Calculating the median age

• Ignoring the data

Which is not a reason to use statistics?

• To understand variability in data

• To compare the average speeds of two species

• To determine the exact age of an individual

• To find the average age of a group

Which method is not suitable for comparing speeds of dogs and cats?

• Ignoring the variability

• Comparing individual speeds

• Calculating the median speed

• Using the average speed

Which question is a statistical question?

• What is the speed of a specific dog?

• In general, do cats run faster than dogs?

• How much rain fell in Seattle in 2013?

• What is the exact weight of a wolf?

What is a statistical question?

• How much does a specific wolf weigh?

• What is the weight of your dog?

• Do wolves weigh more than dogs in general?

• Does your dog weigh more than that wolf?

What is necessary to compare rainfall in two cities?

• Personal opinion

• Average rainfall data

• A single year's data

• Ignoring variations

Which question does not require statistical tools to answer?

• Will driving at 55 mph use less gas than at 70 mph?

• Does it rain more in Seattle than Singapore?

• Do English professors earn less than Math professors?

• What was the rainfall difference in 2013 between Singapore and Seattle?

What factor does not affect gas mileage at different speeds?

• Wind conditions

• Road conditions

• Color of the car

• Type of car

What helps to answer if one professor earns more than another?

• Guessing based on their department

• Asking other professors

• Looking at their tax forms

• Calculating the average salary of all professors