Suppose the bank installs nine alarms. What is the expected number of alarms that will detect a burglar?

Find the roots of the polynomial function f(x) = x^3 + 2x^2 + x

The human resources manager at a company records the length, in hours, of one shift at work, x. he creates the probability distribution below. what is the probability that a worker chosen at random works at least 8 hours? probability distribution px(x) 6 hours 7 hours 8 hours 9 hours 10 hours 0.62 0.78 пол

Me n o w. i need t h i s. 10 points