World record time in the marathon

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The world record time (in minutes) in the marathon is plotted versus the year in which the record was set for men and women separately. The plotting symbol o is used for men and x for women. The data include only records set between 1908 and 1988.

1516_time.gif

Which of the following statements would be a valid conclusion from this plot?

A.The world record times for women show a greater rate of improvement (decrease more rapidly) than the world record times for men.

B.We can expect the world record time for women to be lower than that for men sometime before the year 2010.

C.By the year 2010, the world record time for men will reach a plateau beyond which no improvement will be possible.

Reference no: EM137681

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