Chi-squared test. A chi-squared test, also written as Ï 2 {\displaystyle \chi ^{2}} test, is any statistical hypothesis test wherein the sampling distribution of the test statistic is a chi-squared distribution when the null hypothesis is true.
volcanoes can also occur at hot spots such as at the areas of the hawaiian islands and yellowstone in america this type of volcano forms when magma from the mantle rises to earth s surface through a certain spot in the middle of the plate i e the pacific plate for the hawaiian islands
Volcanoes are a vibrant manifestation of plate tectonics processes. Volcanoes are common along convergent and divergent plate boundaries, but are also found within lithospheric plates away from plate boundaries. Wherever mantle is able to melt, volcanoes may be the result.