Respuesta :

Answer:

Given to find:

the proportion of observations such that -1.66 < z < 2.85

we get that,

[tex]P(-1.66Solving we get,[tex]P(-1.66From the normal distribution table,[tex]=0.9978-0.0485=0.9493[/tex]

Answer is : P(-1.66 < z < 2.85)=0.9493