MODELING AND FORECASTING LIFE EXPECTANCY AT AGE SIXTY-FIVE IN THE POPULATION OF NIGERIA USING AUTOREGRESSIVE INTEGRATED MOVING AVERAGE (ARIMA) MODELS. The Journals of the Nigerian Association of Mathematical Physics, [S. l.], v. 65, p. 87 – 94, 2023. Disponível em: https://nampjournals.org.ng/index.php/home/article/view/36.. Acesso em: 6 apr. 2025.