Question

find the area under the standard normal curve for the following:
(A) P(z< -0.74)
(B) P(-0.87 < z <0)
(c) P(-2.03 < z < 1.66)

Answer 1

just use the standard normal table

Answer 2

noting that

\[\mathbb{P}(a < Z <b)=\mathbb{P}(Z<b)-\mathbb{P}(Z<a)\]

Answer 3

ok this is where i get confused. Would I look up -0.74? Sorry but I really don't understand this