Evaluate the mean of temperatures:
Example:
Given the subsequent temperature readings,
573, 573, 574, 574, 574, 574, 575, 575, 575, 575, 575, 576, 576, 576, 578
Solution:
Conclude the frequency of each reading.
Then calculate the mean,
x' = 2(573) + 4(574) + 5(575) + 3(576) + 1(578)/15
x' = 8623/15
x' = 574.9