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Q) The table to the right shows the mean maximum daily temperature for Oxford for each year from 1905 to 1920 along with a moving 5-year average (the value shown beside 1920 is the average from 1916 to 1920 inclusive). Three values are missing from the table.
What value should be in the position marked 'y'?
Year Mean maximum daily temperature 5-year moving average
1905 13.4 13.40
1906 14.4 13.56
1907 13.4 13.60
1908 13.7 13.66
1909 X Y
1910 13.3 Z
1911 14.9 13.66
1912 13.7 13.72
1913 14.2 13.82
1914 14.7 14.16
1915 13.6 14.22
1916 13.3 13.90
1917 12.8 13.72
1918 13.8 13.64
1919 13.0 13.30
1920 13.8 13.34
Q) Last month, in an attempt to improve my fitness, I began to run daily. The maximum distance I have time to fit on any particular day is 8 miles, but my aim is to maintain an average of at least 5 miles per dav. After 15 days my average was just under 6 miles per day, then the following day I increased my average to just over 6. Since then (for the last 9 days, up to and including today) I have been able to run only 2 miles each day.
What is the minimum number of days from now until I can bring my average back up to 5 miles per day?
What value should be in the position marked 'y'?
Year Mean maximum daily temperature 5-year moving average
1905 13.4 13.40
1906 14.4 13.56
1907 13.4 13.60
1908 13.7 13.66
1909 X Y
1910 13.3 Z
1911 14.9 13.66
1912 13.7 13.72
1913 14.2 13.82
1914 14.7 14.16
1915 13.6 14.22
1916 13.3 13.90
1917 12.8 13.72
1918 13.8 13.64
1919 13.0 13.30
1920 13.8 13.34
Q) Last month, in an attempt to improve my fitness, I began to run daily. The maximum distance I have time to fit on any particular day is 8 miles, but my aim is to maintain an average of at least 5 miles per dav. After 15 days my average was just under 6 miles per day, then the following day I increased my average to just over 6. Since then (for the last 9 days, up to and including today) I have been able to run only 2 miles each day.
What is the minimum number of days from now until I can bring my average back up to 5 miles per day?
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