If X∼N(0,1)X \sim N(0, 1)X∼N(0,1), what is P(∣X∣<1)P(|X| < 1)P(∣X∣<1)?
2Φ(1)−12\Phi(1) - 12Φ(1)−1
Φ(1)\Phi(1)Φ(1)
1−Φ(1)1 - \Phi(1)1−Φ(1)
0.5Φ(1)0.5\Phi(1)0.5Φ(1)