Find the following probabilities. (Round all answers to four decimal places.) (a) p( -0.87 < z < 1.65 ) = , (b) p( -2.31 < z < -1.18 ) = , (c) p( z < 1.52 ) = 0.9357

Answer 1

use z tables or a z calculator

a) P(-.87<z<-1.65) = .95053- .80785 = .14268 = .1427

b) P(-2.31 <z< 1.18) = .9896-.8810 = .1086

c) P(z<1.52) = .93574 = .9357