This official problem set for the Statistics Examination (Statistics Certification) includes questions from 2018 to 2021 for levels 3 and 4. - Title: Official Problem Set for Statistics Examination Levels 3 & 4, 2018-2021 - Publication Years: 2018, 2019, 2021 - Examination Levels: Level 3 & Level 4 - Publisher: The Japan Statistical Society Thank you for viewing.