Question

petro made a tally chart shown below.
hours spent watching tv
hours | 4 | 5 | 6 | 7
tally | |||| | |||| | ||| | ||||
which would be a good statistical question based on the tally chart?

• did you watch four hours of tv today?
• did you watch tv today?
• did you watch five or six hours of tv today?
• how many hours did you spend watching tv today?

Explanation:

A statistical question should have answers that vary and can be analyzed. Let's analyze each option:

• "Did you watch four hours of TV today?" has a yes/no (or specific) answer with no variation related to the tally chart's data range (4,5,6,7 hours).
• "Did you watch TV today?" is a yes/no question, not related to the hours spent (the focus of the tally chart).
• "Did you watch five or six hours of TV today?" is a yes/no (or specific choice) question, not a statistical question as it limits to two values and doesn't allow for a range of responses related to the data.
• "How many hours did you spend watching TV today?" is a statistical question because it allows for responses (4,5,6,7 hours as per the tally chart) that can be analyzed (e.g., finding the mode, mean, etc.).

Answer:

D. How many hours did you spend watching TV today?