what interval about the mean includes 95 of the data in the survey
Confidence interval
Pr θ , φ ( u ( X ) < θ < v ( X ) ) ≥ γ for all ( θ , φ ) ( \ displaystyle ( \ Pr ) _ ( \ theta , \ varphi ) ( u ( X ) < \ theta < v ( X ) ) \ geq \ gamma ( \ text ( for all ) ) ( \ theta , \ varphi ) \ , )
Pr θ , φ ( u ( X ) < θ < v ( X ) ) ≥ γ for all ( θ , φ ) ( \ displaystyle ( \ Pr ) _ ( \ theta , \ varphi ) ( u ( X ) < \ theta < v ( X ) ) \ geq \ gamma ( \ text ( for all ) ) ( \ theta , \ varphi ) \ , )