【多选题】You have set the value of the NLS_TIMESTAMP_TZ_FORMAT parameter in the parameter file to YYYY-MM-DD. The default format of which two data types would be affected by this setting? ()
【多选题】You have set the value of the NLS_TIMESTAMP_TZ_FORMAT parameter in the parameter file to YYYY/x7fMM/x7fDD. The default format of which two data types would be affected by this setting?()
【简答题】Suppose that X has the following probability distribution:X123p q^22 q(1- q)(1- q)^2where q (0< q<1) is an unknown parameter. Now we obtain x1=1, x2=2, x3=1. Then a moment estimate of q=.(cor...
【简答题】Suppose that X follows the following distribution:X123p q^22 q(1- q)(1- q)^2where q (0< q<1) is an unknown parameter. Now we obtain x1=1, x2=2, x3=1. Then a maximum likelihood estimate of q=.(correc...