Statistic Math Homework: 1255108

  1. For a Standard normal Distribution, Find:

P (Z < -1.2)

From the normal tables, P (Z < -1.2) =0.1151

  • For a Standard normal Distribution, Find:

P (Z > 1.6)

Since the included furthest ends make no difference for continuous variable;

From the standard normal table

  • For a Standard normal Distribution, Find:

P (-2.36 < Z < -0.61)

P (-2.36 < Z < -0.61) = P (Z < -0.61) –P (Z < -2.36)

= 0.2709−0.0091= 0.2618

So;

P (-2.36 < Z < -0.61) = 0.2618

  • For a Standard normal Distribution, Find:

P (Z < 2.27)

 From the standard normal table, P (Z < 2.27) = 0.9884

  • For a Standard normal Distribution, Find:

P (Z > 2.63)

Since the included furthest ends make no difference for continuous variable;

From the standard normal table

  • For a Standard normal Distribution, Find:

P (-0.31 < Z < 2.16)

P (-0.31 < Z < 2.16) = P (Z < 2.16) –P (Z < -0.31)

= 0.9846−0.3783= 0.6063

So;

P (-0.31 < Z < 2.16) = 0.6063