In summers,the day time temperature is recorded as `(43+-1)@_C` and in night it is recorded as `(35+-1)@_C`. The fall in temperature is calculated as

It the temperature is increased above 35^(@)C ,

If the temperature is increased (above 35^(@)C )

At a temperature above 35^(@)C

The initial and final temperature are recorded as (40.6 +- 0.3)^(0)C and (50.7 +- 0.2)^(0)C . The rise in temperaute is

The daily minimum temperature recorded ( in .^(@)F ) at a place during six days of a week was as under : find the mean temperature .

The initial and final temperature of water were recorded as (56.3 pm 0.4) ^(@)C and (27.5 + 0.3) ^(@)C . Determine the fall in the temperature of water .

When was a global network of daily temperature records created ?