Applications of Quantitative Methods in Finance Assignment 3
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Applications of Quantitative Methods in Finance
Assignment 3
Semester 2, 2022
Calculus
1. Differentiate the following and for each state whether you have used the product rule and/or the quotient rule and/or the chain rule.
/1 + e2北、4
2x
(b) h(x) = (2x)3 /8x3、_2 _ 6x_2
2. Let the global demand q (in thousand-tonnes per day) for one partic- ular metal be related to the price p in thousand-dollars per tonne by p = D(q) where the demand function is
D(q) = 501_0.01q .
(a) Calculate D(60) and interpret your answer in context. (b) Calculate D\ (q).
(c) Calculate D\ (60) and interpret your answer in context.
Probability
3. A digital marketing consultant is using probability theory to assess the potential for new clients to alter the total revenue received by his business.
Each new client is assessed as either a Follower (F) or an Influencer (Fc) with a particular probability. The consultant has traditionally
found that Influencers increase the total revenue of his business with a probability of 0.85 (I) or decrease it with a probability of 0.05 (D). There is a 10 percent chance that they will not alter the revenue (N). On the other hand, there is a 25 percent chance that those classified
as Followers will increase his revenue but a 30 percent chance they will decrease it.
(a) Place this information in a tree diagram using the symbols F , Fc ,
I , D, and N to represent a Follower, an Influencer, an increase in the consultant’s revenue, a decrease in revenue and no change in revenue.
(b) The digital marketing consultant is 95 percent certain that a po-
tential client can be characterised as a social media Follower.
What is the probability that client will not increase his revenue?
(c) Calculate Pr(F | Ic) for this case.
(d) Show that F and Ic are not independent events.
(e) The consultant’s risk profile dictates he only mentors clients that
have less than a 50% chance of not increasing his revenue. What level of certainty does the consultant require that a client is not a Follower before agreeing to mentor them?
2022-08-19