Official PYQ · 2003Set 1 · Q65Probability and StatisticsMCQ1 mark

GATE EC 2003 Set 1 Q65 — Probability and Statistics

Data for Q. 65-66 are given below. Solve the problems and choose the correct answers.

Let $X$ be the Gaussian random variable obtained by sampling the process at $t=t_{i}$ and let

$\mathrm{Q}(\alpha)=\int_{\alpha}^{\infty} \frac{1}{\sqrt{2 \pi}} e^{\frac{x^{2}}{2}} d y$

The probability that $[x \leq 1]$ is

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Answer: A

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Published 10 Oct 2026

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