a)Richfield offers 15 different courses in its curriculum. SABC has agreed to advertise on TV but only has space to advertise four courses each day. Calculate the number of possible groupings of four courses that Richfield can advertise on SABC given that the order in which the courses are selected is not important.
a)Richfield offers 15 different courses in its curriculum. SABC has agreed to advertise on TV but only has space to advertise four courses each day. Calculate the number of possible groupings of four courses that Richfield can advertise on SABC given that the order in which the courses are selected is not important.
b) You just landed a new job as a project manager and your first task for the currently running project is to try and estimate the probability of completing the project on time when requirements change.
You are also provided with historical data and it shows you that 75% of previous projects were all completed on time.
The same data also shows that of those that were completed on time, 35% of them had requirement changes while those projects that were not completed on time, 85% of them had requirements changes. Calculate the probability of completing the project on time given that requirement changes occurred.
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