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Question: How confident do you feel about having to do the following mathematics tasks? - Using the concept of statistical variation to make a decision
Choices: "Not at all confident" "Not very confident" "Confident" "Very confident"
Data: % of "Confident" "Very confident"
Period:
Area:
10 countries/ areas
Highlight:
1 France52.9%
2 Australia52.5%
3 Canada52.4%
4 United States 46.5%
5 United Kingdom45.4%
6 Sweden42.8%
7 Italy35.1%
8 Japan28.6%
9 Republic of Korea27.4%
10 Germany26.9%

Note
The data of Azerbaijan are collected only in Baku. The data of Ukraine are collected from 18 out of 27 regions.

Source
OECD PISA 2022

Correlations with major national performance indices
Life satisfaction (10 steps)
No. of data10
Regression equation
Y = 2.473831 X +5.639
Correlation coefficient (r)0.640
Coefficient of determination (R2)0.410

GDP per capita (current US$)
No. of data10
Regression equation
Y = 80088.660185 X +16054.205
Correlation coefficient (r)0.594
Coefficient of determination (R2)0.353

Life expectancy at birth - Both sexes (years)
No. of data10
Regression equation
Y = -4.754200 X +83.952
Correlation coefficient (r)-0.221
Coefficient of determination (R2)0.049

Fertility rate, total (births per woman)
No. of data10
Regression equation
Y = 1.856247 X +0.717
Correlation coefficient (r)0.669
Coefficient of determination (R2)0.448

Suicide, age-standardized (per 100 000 population)
No. of data10
Regression equation
Y = -9.021220 X +14.803
Correlation coefficient (r)-0.210
Coefficient of determination (R2)0.044