# Question: A sample of 500 large companies showed that 120 of

A sample of 500 large companies showed that 120 of them offer free psychiatric help to their employees who suffer from psychological problems. If one company is selected at random from this sample, what is the probability that this company offers free psychiatric help to its employees who suffer from psychological problems? What is the probability that this company does not offer free psychiatric help to its employees who suffer from psychological problems? Do these two probabilities add up to 1.0? If yes, why?

## Relevant Questions

A sample of 400 large companies showed that 130 of them offer free health fitness centers to their employees on the company premises. If one company is selected at random from this sample, what is the probability that this ...Briefly explain the difference between the marginal and conditional probabilities of events. Give one example of each. In a group of adults, some own iPads, and others do not. If two adults are randomly selected from this group, how many total outcomes are possible? Draw a tree diagram for this experiment. Thirty percent of last yearâ€™s graduates from a university received job offers during their last semester in school. What are the two complementary events here and what are their probabilities? Given that A and B are two independent events, find their joint probability for the following. a. P (A) = .29 and P (B | A) = .65 b. P (B) = .03 and P (A | B) = .28Post your question