The Completion Times for a Certain Marathon Race Was 2

question 63

Multiple Choice

The completion times for a certain marathon race was 2.4 hours with a standard deviation of 0.5 hours. What can you determine about these data by using Chebyshev's Inequality with K = 2?

• A) At least 75% of the completion times are between 1.4 hours and 3.4 hours.
• B) No more than 75% of the completion times are between 1.4 hours and 3.4 hours.
• C) At most 88.9% of the completion times are between 1.4 hours and 3.4 hours.
• D) At least 88.9% of the completion times are between 1.4 hours and 3.4 hours.

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