An annual marathon covers a route that has a distance of approximately 26 miles.

Question

An annual marathon covers a route that has a distance of approximately 26 miles. Winning times for this marathon are all over 2 over 2 hours for the winning male runners over two periods of 20 years each 18 13 9 12 13 12 19 15 14 18 8 16 20 22 13 10 23 15 10 22 Recent Period 14 7 8 9 9 8 10 9 7 14 9 99911 8 9 10 7 8 (a) Make a stem-and-leaf display for the minutes over 2 hours of the winning times for the earlier period. Use two lines per stem. (Use the tens digit as the stem and the ones digit as the leaf. Enter NONE in any unused answer blanks. For more details, view How to Split a Stem.) Minutes Beyond 2 Hours Earlier 0022333 455688 9 (b) Make a stem-and-leaf display for the minutes over 2 hours of the winning times for the recent period. Use two lines per stem. (Use the tens digit as the stem and the ones digit as the leaf. Enter NONE in any unused answer blanks.) Minutes Beyond 2 Hours Recent Pe O Type here to search /24/2018

Explanation / Answer

Using two lines per stem: First row of each stem is reserves: 0,1,2,3,4 and Second-row reserves: 5,6,7,8,9

Earlier Stem Leaf 0 0 89 1 00223334 1 556889 2 0223 2 Recent Stem Leaf 0 0 777888899999999 1 00144 1

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