Answer to Question #346104 in Statistics and Probability for Justme

Question

2. What is the area of z = - 1.21 ?

A. 0.3665

B, 0.3869

3. What is the equivalent z-score of P_{23} ?

A. 0.67

B. plus/minus 1.29

4. What is the area of below z=2.11?

A. 0.4826

B. 0.0174

C. 0.4821

C, plus/minus 0.68

C. 0.9826

5. What is the area between the z-score z = - 3.03 and z = 1.32 ?

A. 0.0922

B. 0.4066

C. 0.4988

D. 0.4826

D. pm1.28

D. 0. 5174

D. 0.9054

Answer 1

2.

$$P(Z<-1.21)=0.1131$$

0.1131

3.

$$P(Z<-0.7388)=0.23$$

-0.7388

4.

$$P(Z<2.11)=0.9826$$

C. 0.9826

5.

$$P(-3.03<Z<1.32)$$

$$\approx0.90658-0.00122=0.9054$$

D. 0.9054