1. Standard Normal Curve Probabilities
Given Z
Left Right In between
Z-score entry 0 1.24 0.42
Answer 0.5000 0.1075
Find Z
Standard
Mean Deviation Data
15 3 16.5
15 3 3.2
Left Right In between
Answer 0.6915 0.3085 0.6914
Finding z for a probability
LEFT RIGHT BETWEEN
Probability
0.74 0.64 -0.64 -1.13
1.13
Finding Standard Scores
Standard
Mean Deviation Data (x) Z-Score
24 3 32 2.67
Finding Data Scores
Standard
Mean Deviation Z-Score X
24 3 1.11 27.3

2. n between
3.15
0.3364
Zscore
0.50
-3.93
n between

3. Find Z
Sample
Size (n) Mean Standard Deviation tandard Error
S Data Zscore
36 1300 250 41.67 1150 -3.60
36 1300 250 41.67 2.2 -31.15
Left Right In between
Answer 0.0002 0.9998 0.0002

4. Binomial to Normal np nq
4 16 Standar
d New Data
Deviatio w/correctio
n p q Mean n n Z-score
20 0.2 0.8 4 1.7889 97.5 52.27
20 0.2 0.8 4 1.79 200.5 109.85
Answers
Less than Greater than In Between
1.0000 0.0000000000 0.0000000