Ms. Bohanon surveyed each of her students about the amount of time they studied for a test. The dot plot shows the results.

Study Time

Amount (minutes)

Which statement is best supported by the data in the dot plot?
Responses
A The number of students who studied one hour or more is greater than the number of students who studied less than 45 minutes.The number of students who studied one hour or more is greater than the number of students who studied less than 45 minutes.
B The difference between the greatest and least amounts of time students studied is one hour.The difference between the greatest and least amounts of time students studied is one hour.
C The number of students who studied more than one hour is greater than the number of students who studied one-half hour.The number of students who studied more than one hour is greater than the number of students who studied one-half hour.
D The most common amount of time students studied is 60 minutes.The most common amount of time students studied is 60 minutes.
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The best statement supported by the data in the dot plot is: B. The difference between the greatest and least amounts of time students studied is one hour.