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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%
5 Republic of Korea74.9%
6 United Kingdom72.1%
7 France 71.0%
8 Germany70.0%
9 Australia69.9%
10 Sweden66.5%

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 = -6.361279 X +11.348
Correlation coefficient (r)-0.710
Coefficient of determination (R2)0.504

GDP per capita (current US$)
No. of data10
Regression equation
Y = -112390.041537 X +131851.973
Correlation coefficient (r)-0.360
Coefficient of determination (R2)0.130

Life expectancy at birth - Both sexes (years)
No. of data10
Regression equation
Y = 0.996681 X +81.265
Correlation coefficient (r)0.020
Coefficient of determination (R2)0.000

Fertility rate, total (births per woman)
No. of data10
Regression equation
Y = -3.585026 X +4.124
Correlation coefficient (r)-0.557
Coefficient of determination (R2)0.310

Suicide, age-standardized (per 100 000 population)
No. of data10
Regression equation
Y = -6.726294 X +16.063
Correlation coefficient (r)-0.068
Coefficient of determination (R2)0.005