noun ダウンロード 🔗共有 普及, 蔓延 The quality or condition of being prevalent; wide extension or spread. Examples : "The high prevalence of cell phone use in schools is a growing concern for teachers. " 学校での携帯電話の使用の普及率の高さは、教師にとってますます大きな懸念事項となっています。 statistics condition medicine society biology disease frequency quality AIとチャット語彙ゲーム読解練習
noun ダウンロード 🔗共有 有病率 The total number of cases of a disease in a given statistical population at a given time, divided by the number of individuals in that population. Examples : "The prevalence of colds among students in the school this winter was high. " 今冬、学校の生徒の間での風邪の有病率は高かった。 medicine disease statistics biology AIとチャット語彙ゲーム読解練習
