General Maths U3 Date Vocab

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Key words and ideas for General Mathematics Unit 3, Topics 1,2 and 3

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Relacionar Columnas General Maths U3 Date VocabVersión en línea Key words and ideas for General Mathematics Unit 3, Topics 1,2 and 3 por Brendan Vidler 1 Correlation and causation 2 Linear regression 3 Bivariate data 4 Explanatory and response variables 5 Trend 6 Least squares method 7 Two-way frequency tables 8 Moving mean smoothing 9 Residuals 10 Seasonality 11 Smoothing 12 Correlation coefficient 13 Seasonal indices 14 Interpolation and extrapolation The vertical distance from a data point to the straight line. A technique used to eliminate some of the irregular fluctuations in a time series plot so that features such as trend are more easily seen. The process of fitting a line to data. Used to quantify the seasonal variation in a time series. … data in which each observation involves recording information about two variables for the same person or thing. An example would be the heights and weights of the children in a preschool. The ________________, __, gives a measure of the strength of a linear relationship between two numerical variables. One way of finding the equation of a regression line. It minimises the sum of the squares of the residuals. It works best when there are no outliers. The equation of the least squares regression line is given by y = a + bx, where a represents the y-intercept of the line and b the slope. Present when there is a periodic movement in a time series that has a calendar related period, for example, a year, a month, a week. Summarises bivariate data obtained from two categorical variables. In a two-way frequency table, the columns are labelled with the values of the EV, and the rows are labelled with the values of the RV. Each original data value is replaced by the mean of itself and a number of data values on either side. When smoothing over an even number of data points, centring is required to ensure the smoothed mean is centred on the chosen point of time. Predicting within the range of data is called ____________. Predicting outside the range of data is called ________________. The _________________ may explain the associated changes in the ___________________. A _________ is present when there is a long-term upward or downward movement in a time series. A _____________ between two variables does not automatically imply that the association is causal. Alternative non-causal explanations for the association include a common response to a common third variable, a confounded variable or simply coincidence.

Relacionar Columnas

General Maths U3 Date VocabVersión en línea

Key words and ideas for General Mathematics Unit 3, Topics 1,2 and 3

Correlation and causation

Linear regression

Bivariate data

Explanatory and response variables

Trend

Least squares method

Two-way frequency tables

Moving mean smoothing

Residuals

Seasonality

Smoothing

Correlation coefficient

Seasonal indices

Interpolation and extrapolation

The vertical distance from a data point to the straight line.

A technique used to eliminate some of the irregular fluctuations in a time series plot so that features such as trend are more easily seen.

The process of fitting a line to data.

Used to quantify the seasonal variation in a time series.

… data in which each observation involves recording information about two variables for the same person or thing. An example would be the heights and weights of the children in a preschool.

The ________________, __, gives a measure of the strength of a linear relationship between two numerical variables.

One way of finding the equation of a regression line. It minimises the sum of the squares of the residuals. It works best when there are no outliers. The equation of the least squares regression line is given by y = a + bx, where a represents the y-intercept of the line and b the slope.

Present when there is a periodic movement in a time series that has a calendar related period, for example, a year, a month, a week.

Summarises bivariate data obtained from two categorical variables. In a two-way frequency table, the columns are labelled with the values of the EV, and the rows are labelled with the values of the RV.

Each original data value is replaced by the mean of itself and a number of data values on either side. When smoothing over an even number of data points, centring is required to ensure the smoothed mean is centred on the chosen point of time.

Predicting within the range of data is called ____________. Predicting outside the range of data is called ________________.

The _________________ may explain the associated changes in the ___________________.

A _________ is present when there is a long-term upward or downward movement in a time series.

A _____________ between two variables does not automatically imply that the association is causal. Alternative non-causal explanations for the association include a common response to a common third variable, a confounded variable or simply coincidence.

General Maths U3 Date Vocab

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Relacionar Columnas

General Maths U3 Date VocabVersión en línea

por Brendan Vidler

Correlation and causation

Linear regression

Bivariate data

Explanatory and response variables

Trend

Least squares method

Two-way frequency tables

Moving mean smoothing

Residuals

Seasonality

Smoothing

Correlation coefficient

Seasonal indices

Interpolation and extrapolation