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Hi While going through the course notes of Chapter 5 - Benefits Overview and Providers of Benefits, I had a doubt that how would increased...
Hey I was going through the Chapter 1 of the subject and found that a general random walk can be represented as Xn = Summation of Yj from j = 1...
Hello On page 7 of chapter 8, it is said that every investor should choose a portfolio of the form : a% of the risk free asset + (100-a)% of the...
Let us consider a portfolio P with n assets with a proportion of xi invested in asset ( with i=1,2,3...n and sum(x)=1 ). Let the annual return Rp...
Thanks!! :)
Hey I know it's basic math, but I'm unable to understand how does the last expression suggest a straight line?
On page 14 of chapter 6 , it is written that if the correlation coefficient is 1, then there exists a risk free portfolio with V=0 for negative...
Hello For a log utility function U'(W) is always greater than 0 and U''(W) is always less than 0 ( as W is always positive) . So is it correct...
Hello, in the solution on page 11 of chapter 2, can someone please explain how did we conclude U''(W) < 0 from U(w+1) - U(w)< U(w) - U(w-1)
Understood. Thank you!
Hello I have a doubt in question 3.9 of Assignment X3, why are we not using the census approximation to central exposed to risk? Can you please...
Hello Can you please tell me if Yk ( in the attached image) is a white noise process?
Hello Everyone! I am facing immense trouble in understanding risk models. I have been through the chapters 19 and 20 quite a few times, yet I'm...
Hello I have a doubt in chapter 20, practice questions, Q. 20.2 , shouldn't the insurer's premium income be calculated as 1.2E( SI) instead of...
In solutions for chapter 10 practice questions, Q10.10(iii) , under ISD test, it's given that the distribution is positively skewed, which is...
In Chapter 10, signs test, how do we know when to accept or reject the null hypothesis? In the question on page 31-32, it is mentioned that since...
In Question 8.5(iv) of Chapter 8 Practice Questions, how is it that the female smokers have a higher risk of heart attack than female non-smokers...
How can we differentiate between right censoring and random censoring?
Thank you.
Can anyone please explain to me that how is P(T0 > t) = probability that no event occurs between the time 0 and time t?
Thanks!
Thank you!
Hello Is the following method (attached image) of establishing a relationship between survival probability and force of mortality acceptable?...
Hello I have a doubt in question (III) given on page 29 of chapter 2 I did not understand how did we calculate the one step transition...
Hey I can't understand the use of notations on page 9, chapter 2. I've attached the screenshot of that text. Thanks.
Hey Can you please explain how have we used these formulas in solving the above problem?
Hello I'm unable to recall the formula used here for calculating the covariance . This is the solution of Question 1.2(i) from chapter 1 practice...
Hello I have a few doubts: 1) In question 7.16, why has ultimate mortality been used instead of select mortality? 2) ON page 37, while...
Hello! I'm a little confused with the question 6.13 on page 28 of chapter 6. In the question they have mentioned that the policy is subjected to...
Hello, as I'm a beginner, I have a very basic doubt regarding summations and probabilities from chapter 1. With reference to pages 15 and 16 , it...
In Q&A bank part 2, for the solution of question 2.6 (Iii), how is variance of ( x (bar) | theta ) = (1/n) * var( Xj| theta)
In Q&A bank part 2. Question 2.2(i), I have the following doubts: 1.Why has there been no use of summation ( or product) for calculating the...
Topic : frequency distribution of S ( Chapter 7- Risk models 1) In the question 7.3, given on page number 13 of the material , I have the...
Where is it mentioned in the question that only one observation is taken.
Ohh! Thank you!
Hello! I'm unable to figure out how the interaction terms have been found out on page 25 And 27 Of Chapter 10. Also, I didn't understand how the...
I am a student and presently unemployed, so am I eligible for any discount?
In exam style question 1 on page 25 , I had a doubt in parts (III) and (iv) . I solved it in a different way, without making use of size(u)....
Hello! I would like to know the cost of online classroom videos for CT subjects for an Indian student. Thanks!
Hello! I would like to know what would be the cost of online classroom for an Indian student for CT series subjects?
Why are we considering it to be a Bernoulli variable?
Question 7b) In the solution, while calculating the likelihood function, P(yi=1) and p(yi=0) are raised to the power yi and 1-yi respectively? Why?
Understood! Thank you! :)
Question and Answer bank Part 4 Question 4.1 A statistical test is used to determine whether or not an anti smoking campaign carried out 5...
Thanks! :)
Question 3.23 Question Bank, Part 3 question 3.23 i) Why do we use two ln in the product of(250+x) term, while taking ln of L(alpha) how...
In the given question (ii), cant we use the formula ((n1-1)s1^2+(n2-1)s2^2)/(n1+n2-2)? On using the above formula, I got 62.05 which is nowhere...
How do we judge normality by using a dot plot? What more useful inferences can be made from a dot plot? [ATTACH]
Haha! Yeah, Thanks! :D
Is it because we are taking 10 numbers from each interval?
umm,Why are we raising it to the power 10?
Question 3.5 Write an expression for the likelihood of obtaining exactly 10 numbers in each of the intervals (0, 0.1), (0.1, 0.2), …, (0.9, 1)...
Thanks for the advice! I have a soft copy of the material, so I am able to quickly copy paste the questions, making it a bit easier for the reader. :)
In problems involving contingency table, how to decide the null hypothesis? In an investigation into the effectiveness of car seat belts, 292...
Ohh! Thanks!
Thank You so much!
When to know whether the given data is paired data or independent data? For example in these two questions, how do we identify which between...
How to calculate P(t14 < -2.908)?
question 1.10 Based on my understanding of the question, I could proceed with the following steps: PV= 100 + 100*(1.05v)+...
