The daily low temperature in Guangzhou, China, varies over time in a periodic way that can be modeled by a trigonometric function. The period of change is exactly 1 year. The temperature peaks around July 26 at 78° F, and has its 206 of a year after 365 minimum half a year later at 49° F. Assuming a year is exactly 365 days, July 26 is January 1. Find the formula of the trigonometric function that models the daily low temperature T in Guangzhou t years after January 1, 2015. Define the function using radians. T(t) = |

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.