Pc less than equal to x less than equal to 088 01638 Solut

P(c less than equal to x less than equal to ? 0.88) = 0.1638

Solution

P(c <= Z <= -0.88) = 0.1638

P(Z<=-0.88) - P(Z<=C) =0.1638

=>

P(Z<= C) = P(Z<=-0.88) - 0.1638

=>

P(Z<=C) = 0.1894 - 0.1638

=>

C = invnorm(0.0256)

= -1.95