1. (a) Attempt a working definition of communication. (b) Explain with illustrations the stages in communication process.
(c) Why is it important to study business and organisational communication?
2 (a) "A number of barriers do serve as clogs in the wheel of business and organisatio
communication”. Explicate.
(b) What are the solutions to the problems of business and organisational communica-
3 (a) List and explain any four (4) major forms of communication channels in an orga
(b) What is the implication of communication breakdown in an organisation?
4 (a) What is meant by business letter? Explain the qualities of a good business letter

Stock a has a beta of 1.2 and a standard deviation of 20%. stock b has a beta of 0.8 and a standard deviation of 25%. portfolio p has $200,000 consisting of $100,000 invested in stock a and $100,000 in stock b. which of the following statements is correct? (assume that the stocks are in equilibrium.) (a) stock b has a higher required rate of return than stock a. (b) portfolio p has a standard deviation of 22.5%. (c) portfolio p has a beta equal to 1.0. (d) more information is needed to determine the portfolio's beta. (e) stock a's returns are less highly correlated with the returns on most other stocks than are b's returns.

You are the manager of a large crude-oil refinery. as part of the refining process, a certain heat exchanger (operated at high temperatures and with abrasive material flowing through it) must be replaced every year. the replacement and downtime cost in the first year is $165 comma 000. this cost is expected to increase due to inflation at a rate of 7% per year for six years (i. e. until the eoy 7), at which time this particular heat exchanger will no longer be needed. if the company's cost of capital is 15% per year, how much could you afford to spend for a higher quality heat exchanger so that these annual replacement and downtime costs could be eliminated?

Amarginally attached worker is a person who is not happy with his or her job. someone who works part-time more than 25 hours per week but wants full-time work. someone who does not have a job but is available and willing to work and has made specific but unsuccessful efforts to find a job during the past 4 weeks. someone who does not have a job but is available and willing to work but has not made specific efforts to find a job during the past 4 weeks. another name for an unemployed worker.