Question

Find the proportion of observations such that -1.66 < z < 2.85. (Enter your answer rounded to four decimal places.)

Answer 1

Given to find:

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

we get that,

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

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