Q53Section DA (Data Science and Artificial Intelligence (Q11–Q65))53 of 65

Distributional results for sums of squared standard normal variables

Let $X_1,X_2, … ,X_n$ be $n$ independent random variables. Each of the random variables follows $Normal(\mu = 0, \sigma^2 = 1)$ distribution. Define $\bar{X} = \frac{1}{n}\sum_{i=1}^{n} X_i$ . Which of the following statements is/are correct?

Multiple select: one or more options are correct. Select all of them, then submit — marks need the exact set.

Select every correct option, then submit.

Keyboard: A–D answer · S solution · ←/→ previous/next