Univariate Data
The 4 things we focus on when comparing boxplots.
What is outliers, shape, centre and spread?
2 types of linear decay.
What is unit cost and flat rate depreciation?
10, 15, 20, 25
What V0 = 10 Vn+1 = Vn + 5
Number of rows × number of columns
What is the order of a matrix?
The type of skew where the mean is higher than the median.
What is negatively skewed?
This is another name for the r value when looking at scatterplots.
What is Pearson's correlation coefficient?
The compounding rate if the interest rate is 5% compounding quarterly.
What is 1.25?
A sequence occurs when quantities increase or decrease by the same percentage at regular intervals.
What is Geometric Growth?
A matrix of any order comprised of all zeros.
What is a zero matrix?
The type of data to describe your shoe size.
What is numerical discrete data?
The type of variable that is placed on the horizontal or x axis when drawing a scatterplot.
What is the explanatory variable (IV).
The amount of interest paid if $1000 has been invested for 2 years at 10% simple interest.
What is $200?
The first 4 terms of V0 = 5 Vn+1 = 0.5Vn
What is 5, 2.5, 1.25, 0.625?
Switching rows and columns.
What is the transpose of a matrix?
The percentage of people that lie between 1 standard deviation below and 2 standard deviations above the mean.
What is 81.5%
The possible transformations used when trying to linearise data the represents the top right part of a circle.
What is y squared or x squared?
The rate of effective interest is this if the interest rate is 4.5% p.a. compounding monthly.
What is 4.59%?
𝑉𝑛 = 𝑅𝑛 × 𝑉0
What is a rule for individual terms of a geometric growth and/or decay sequence?
A square matrix in which all elements below the leading diagonal are zeros.
What is an upper triangular matrix?
On a maths test, you achieved 65, the mean was 55 and the standard deviation was 5. This is your z score and places you in the top what percent.
What is +2 and 2.5%?
For the equation y = -4x -5, the value of the gradient and the value of y when x equals 10 are this.
What is -4 and -45?
The regular amount made per annum in a perpetuity if $45,000 is invested at 20% interest.
What is $9000?
𝑉𝑛 = 1.09𝑛 × 10000
What is the rule for a principal value of $10000 invested in an account earning compound interest at the rate of 9% per annum.
ad - bc
What is the determinant?