A Researcher Has Collected Some Data on the Amount of Time

question 109

Multiple Choice

A researcher has collected some data on the amount of time in seconds (to the nearest 0.1 second) that it took trained rats to run through a maze. The data is shown below arranged in a frequency distribution of grouped scores. The cumulative percentage for the interval 5.2-5.5 is _________.

• A) 13.89%
• B) 47.22%
• C) 22.22%
• D) 36.11%

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