QUANTITATIVE METHODS 2020-2021 REFER DEFER FINAL EXAM
VERSION TWO
Answer ALL questions.
Question 1. Find the mean of the dataset below. [10 marks]
|
Data |
Frequency |
|
2 |
6 |
|
4 |
10 |
|
7 |
5 |
|
10 |
9 |
Question 2: Find the variance of the dataset below. Assume that the mean equals 4. [10 marks]
|
Data |
Frequency |
|
1 |
9 |
|
2 |
5 |
|
5 |
9 |
|
8 |
7 |
Question 3. If you take a dataset and multiply all the observations by 2, would you expect the variance to change? Briefly explain why or why not. (Max 200 words) [10 marks]
Question 4. Below are the seasonal deviations derived from a dataset using an additive model. Find the seasonal variations. [8 marks]
|
|
Q1 |
Q2 |
Q3 |
Q4 |
|
Seasonal deviations |
30 |
100 |
40 |
-70 |
Question 5. Using the multiplicative model, find the forecast for Q1, 2022 if the estimated trend for Q1, 2022 is equal to 100. Note that the numbers below have already been adjusted. [7 marks]
|
|
Q1 |
Q2 |
Q3 |
Q4 |
|
Seasonal variations |
1.05 |
1.02 |
0.95 |
0.98 |
Question 6. You flip a coin and roll two 6-sided dice. How many different outcomes are possible? [5 marks]
Question 7. You roll a 6-sided die and pick a card from a standard stack of 52 playing cards.
If you roll a number less than 3 AND pick a card with a suit of diamonds (t), then you win. What is the probability of winning? [10 marks]
CS 340 Milestone One Guidelines and Rubric Overview: For this assignment, you will implement the fundamental operations of create, read, update,
Retail Transaction Programming Project Project Requirements: Develop a program to emulate a purchase transaction at a retail store. This
7COM1028 Secure Systems Programming Referral Coursework: Secure
Create a GUI program that:Accepts the following from a user:Item NameItem QuantityItem PriceAllows the user to create a file to store the sales receip
CS 340 Final Project Guidelines and Rubric Overview The final project will encompass developing a web service using a software stack and impleme
