An entire region or a complete object is reffered to as a _​

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

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

The random variable x represents the number of phone calls an author receives in a day, and it has a poisson distribution with a mean of 8.7 calls. what are the possible values of x