Arrange the following intervals of standard normal variate in increasing order…
2026
Arrange the following intervals of standard normal variate in increasing order of probabilities.
Choose the correct answer:
D, C, B, A
C, B, A, D
B, A, C, D
A, B, C, D
- A.
1
- B.
2
- C.
3
- D.
4
Attempted by 24 students.
Show answer & explanation
Correct answer: A
The standard normal distribution is bell-shaped with maximum density at the mean (Z=0).
Probability corresponds to the area under the curve, which decreases as Z moves away from 0.
Interval A is closest to the mean and has the largest area, while interval D is in the far tail with the smallest area.
Thus, the probabilities increase from D to C to B to A.