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Common sense test of safe and civilized driving, is the theory part of subject 3, commonly known as subject 4 (which has never been used as an official name). The test format of subject 4 is similar to subject 1. There are 50 questions including single-choice questions, multiple-choice questions and true-false questions. Each question is 2 ...
Though there are many approximate solutions (such as Welch's t-test), the problem continues to attract attention [4] as one of the classic problems in statistics. Multiple comparisons: There are various ways to adjust p-values to compensate for the simultaneous or sequential testing of hypotheses. Of particular interest is how to simultaneously ...
Around 1.6 million people sit the practical car test each year, with a pass rate of around 43%. The theory test has a pass rate of around 50%. [6] To become a category B (car) licence holder, candidates pay £23 for the theory test and £62 (£45.50 in Northern Ireland [7]) for the practical driving test. [8]
Goldbach’s Conjecture. One of the greatest unsolved mysteries in math is also very easy to write. Goldbach’s Conjecture is, “Every even number (greater than two) is the sum of two primes ...
The others are experimental, meaning that there is a difficulty in creating an experiment to test a proposed theory or investigate a phenomenon in greater detail. There are still some questions beyond the Standard Model of physics , such as the strong CP problem , neutrino mass , matter–antimatter asymmetry , and the nature of dark matter and ...
This article is a list of notable unsolved problems in astronomy.Problems may be theoretical or experimental. Theoretical problems result from inability of current theories to explain observed phenomena or experimental results.
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