Let =15.n=15. Find the mean X and the variance 2X2 of the distribution of.ofX.

(Use decimal notation. Give your answers to three decimal places ifnecessary.)

=X=

2=X2=

Find the probabilityP(9.510.5).probabilityP(9.5X10.5).

(Use decimal notation. Use Table III if necessary. Give your answer to four decimalplaces.)

P(9.510.5)=P(9.5X10.5)=