Direction: for the probability of a Gaussian variable x is given by
| Px(x) = | e – (x – 4)2/18 | 3√2π |
| Q. (0) = 0·5, Q |  |  | = 0·09176 | 3 |
and Q. (2) = 0·02275
-
The probability p(x > – 2) is—
-
- 0·5
- 0·97725
- 0·90824
- None of these
Correct Option: B
| P(x > – 2) = Q |  | | σx |
| = Q | | | 3 |
= Q (– 2)
= 1 – Q (2)
= 1 – 0·02275 = 0·97725
