In 2005, the federal aviation administration updtaed its passengers weight standards to an average of 190 pounds in the summer (195 in the winter). This includes clothing and carry- on baggage. The FAA, however did not specify a standard deviation. A reasonable standard deviation is 35 pounds. Weights are normally distributed especially when the population includes both men and women, but they are not very non- normal. A computer plane carries 25 passangers. What is the apporximate probability that, in the summer, the total weight of the passengers exceeds 5200 pounds?

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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.