Normal Practice

EasyProbability

Suppose that $X \sim N(60,9)$ . Find $\mathbb{P}\left( X > 63 \right)$ . The answer is in the form $\Phi(a)$ for some real $a$ .

Step-by-step hints are a Pro feature.Get started

Create a free account to answer and track your progress.

Practice like a quant

Create a free account to answer questions and track your progress — across 2,000+ interview questions.