STATS
What is the median?
3, 10, 4, 7, 12
7
12% pa compounding quarterly = ____%p.quarter
3%
a 2x3 is multiplied by a 3x 4 ..... what is the order of the answer?
2x4
What is another name for a vertex in a network diagram?
Node
Which Exam is first? Multi or Short Answer
Multi
A dataset is positively skewed. Which is larger: the mean or the median?
Median
3%pa compounding monthly gives an effective rate of ..... (2dp)
3.04%
the Transpose of;
2. 3. 4
3. 4. 5.
is ....
2. 3
3. 4
4. 5
Does a loop count as degree 1 or 2? .... and why is this often confused?
2 .... counts as one in Adjacency matrix
How many Multi Questions are on Exam 1?
40
A sample has mean 25 and standard deviation 4. What % of scores less than 29?
84%
If V0 is 5 and .... Vn+1 = 2n -3
the V3 is
19
If Matrix A is a 2x2 and it follows the rule, ai,j = 2i - j
what is A?
1. 0
3. 2
A delivery truck must visit multiple locations and return to the start. What type of network problem is this?
Hamiltonian Cycle
How many marks are available on Exam 2?
60
A dataset has mean 30 and standard deviation 7.
You got 40. What is your Z-Score correct to 2dp?
1.43
How much is in your account after 1 year if you invest $1000 and 5%pa compounding weekly?
$1051.25
A population starts with 80 cats and 20 dogs. Transition matrix is
0.7 0.2
0.3. 0.8
How many cats next year?
60
A network of 10 vertices all connected to each other. How many edges does it have?
45
Which type of multi questions should you start reading from the bottom?
Checkers!
Summer has a seasonal index of 1.2 .... how do I correct this for seasonality?
decrease by 16.7%
You loan $100,000 at 5%pa making fortnightly repayments of $1000. How many fortnights to pay it off?
112
600 people travel between 3 islands based on the following transition matrix;
0.2. 0.8. .5
0.6. 0.1. .5
0.2. 0.1. 0
Which island ends up least popular?
the last one .... C or 3
You have 2 minutes to complete this question .... NO NOTES
A company has 3 workers (A, B, C) and 3 jobs (1, 2, 3). The cost matrix (in dollars) is:
5 9 1
10 3. 2
8. 7. 4
Determine the minimum cost to complete all jobs
$12
Why do you get a score out of 120 for Exam 2 ..... even though it is only out of 60?
It's marked twice!