Bivariate Data
A correlation coefficient of 0.92
What is a strong positive correlation?
The explanatory variable in a time series graph
What is time?
Another name for a great circle
What is a line of longitude?
OR
What is the equator?
The type of sequence 3,6,9,12.........
What is arithmetic?
A variable that explains the strength of an association in terms of the variation
What is the coefficient of determination?
Two identifiable features of a time series graph
-Seasonality
-Trend
-Irregular fluctuations
What is 15 hours
The type of sequence 10,5,2.5,1.25........
What is geometric?
The residual plot shows a pattern
What is a non-linear model?
The addition of seasonal indices split up into quarterly intervals
What is 4?
The angular distance of 1km on a great circle
What is 111.2o?
The first term and common difference in tn=3+9(n-1)
What is 3(t1) and 9(d)
The value of the correlation coefficient with an R2 value of 0.25 with a negative association
What is -0.5
Removal of short-term irregularities to improve predictions
What is smoothing?
The difference between GMT and UTC
What are local conditions such as daylight savings that are not considered in UTC?
The common ratio in the sequence 1,5,25,125.......
What is 5?
Two non-causal explanations between variables
What is coincidence and confounding?
The average value of a seasonal index
What is 1?
The time difference travelling east to west across the international date line
What is one day later?
The examples, exponential growth, exponential decay and compound interest
What are geometric sequences?