Question

Using the “NormalDistributionTable.pdf” Table, find the areas under the curve in each of the cases in the following figure. (Remember that the total area under the curve is equal to one, and this area is divided in two equal (0.50) areas by the mean, at the peak value of the bell shape.)

-0.68 -0.46 2.21 0.81 1.94 -0.6 1.44 2.05

Answer 1

a)$\small P(0< Z< 1.2)=0.3849$

b)$\small P(-0.68< Z< 0)=0.2517$

c)$\small P(-0.46< Z< 2.21)=0.6637$

d)$\small P(0.81< Z< 1.94)=0.1828$

e)$\small P(Z< -0.6)=0.2743$

f)$\small P(Z> -1.28)=0.8997$

g)$\small P(Z< -1.44 \ or \ Z>2.05)=0.0951$