Which of the following conditions must be met in order to make a statistical inference about a population based on a sample if the sample does not come from a normally distributed population?

Aparallel system functions whenever at least one of its components works. consider a parallel system of n components, and suppose each component works independently with probability 0.5. find the conditional probability that component n works given that the system is working

Write and solve a real word problem that involves determining distance on a coordinate plane

If the discriminant if a quadratic equation is 4 which statement describes the roots?