If a factory can make 28 candles in 2 hours how many can make in 1 hour

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

Our goal is to collect email addresses from 60% of customers who purchase a product." so that means if i talk to 95 customers, i need to persuade to provide an email address?

In the xy-plane, if the parabola with equation passes through the point (-1, -1), which of the following must be true?