Question

13 fill in the blank 1 point
find the area of the indicated region under the standard normal curve
the area between ( z = - 1.4 ) and ( z = 0.8 ) under the standard normal curve is (round to four decimal places as needed.)

Explanation:

Step1: Find the area for \(z = - 1.4\)

Using the standard normal table, the area to the left of \(z=-1.4\) is \(P(Z < - 1.4)=0.0808\)

Step2: Find the area for \(z = 0.8\)

Using the standard normal table, the area to the left of \(z = 0.8\) is \(P(Z<0.8)=0.7881\)

Step3: Calculate the area between \(z=-1.4\) and \(z = 0.8\)

The area between two \(z -\)scores \(z_1\) and \(z_2\) (\(z_1Substitute \(z_1=-1.4\) and \(z_2 = 0.8\)
\(P(-1.4<Z<0.8)=0.7881 - 0.0808=0.7073\)

Answer:

\(0.7073\)