Most trench warfare battles took place right before dawn.
Morris "Mo" Udall said "You have to be a little crazy to run for president".
In 1961 Udall was congressman for Arizona. He was a prominent figure in environmental protection movements and he had an important role opposing the Vietnam war. He sought the nomination in the presidental election of 1976, but was defeated by Jimmy Carter.
Most economists believe that a sales tax increase affects people with low incomes.
The research error described above is an example of selection bias.
Selection bias takes place when, from a population of interest, a group of individuals is selected in order to construct a sample but without a proper randomization. The result is a sample which is not representative of the underlying population.
According to the example, the target population of the research comprises all students but the sample only includes boys. Hence, selection has not been random because it followed a gender criteria, and the results obtained using it cannot be applicable to the whole population because they are affected by a selection bias.
Nero also know as Ceaser (Nero Cladius Divi Claudius filius Caesar Augustus Germanicus), was known for killing hundreds of Christians in his time. One of them, was a fairly famous one who went by the name of Paul. The Apostle Paul. So Nero was responsible for the deaths of hundreds of Christians.
