CUET Preparation Today
If X is normally distributed with mean 12 and standard deviation 4, then standard normal variable Z corresponding to X = 18 is: |
0.5 1.25 1.5 -1.5 |
1.5 |
The correct answer is Option (3) → 1.5 $Z = \frac{X - \mu}{\sigma}$ $Z = \frac{18 - 12}{4} = \frac{6}{4} = 1.5$ $Z = 1.5$ |
