Estadística 2.

EJERCICIOS DE ESTADÍSTICA 2.

P(1,34<Z<2,34)=P(Z<2,34)-P(Z<1,34)

                             =0,9904-0,9099

                            =0,0805.

P(-1,56<Z<-0,06)= P(0,06<Z<1,56)

                               =P(Z<1,56)-P(Z<0,06)

                             =0,9406-0,5239

                            =0,4167.

P(-2,78<Z<3,67)=P(Z<3,67)-P(Z<-2,78)

                             =P(Z<3,67)-[1-P(Z<2,78)]

                            =0,99988-[1-0,9973]

                          =0,99988-0,0027

                       =0,99718.