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Question: How confident do you feel about having to do the following mathematics tasks? - Solving an equation like 2(x+3) = (x+3)(x-3)
Choices: "Not at all confident" "Not very confident" "Confident" "Very confident"
Data: % of "Confident" "Very confident"
Period:
Area:
10 countries/ areas
Highlight:
1 Italy80.8%
2 Japan79.4%
3 Canada77.2%
4 United States76.0%
6 United Kingdom72.1%
7 France71.0%
8 Germany 70.0%

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 data7
Regression equation
Y = -3.919696 X +9.532
Correlation coefficient (r)-0.571
Coefficient of determination (R2)0.326

GDP per capita (current US$)
No. of data7
Regression equation
Y = -88625.757776 X +117393.374
Correlation coefficient (r)-0.243
Coefficient of determination (R2)0.059

Life expectancy at birth - Both sexes (years)
No. of data7
Regression equation
Y = 12.988749 X +71.745
Correlation coefficient (r)0.262
Coefficient of determination (R2)0.069

Fertility rate, total (births per woman)
No. of data7
Regression equation
Y = -3.606486 X +4.187
Correlation coefficient (r)-0.722
Coefficient of determination (R2)0.521

Suicide, age-standardized (per 100 000 population)
No. of data7
Regression equation
Y = 1.979087 X +7.971
Correlation coefficient (r)0.025
Coefficient of determination (R2)0.001