AP Statistics - Measures of Distributions

1

follows a chi-squared distribution with degrees of freedom and through are independent standard normal variables.

If $Y = \sum_{i = 1}^{n}X_i^2$ , what is ?

2

follows a chi-squared distribution with degrees of freedom and through are independent standard normal variables.

If $Y = \sum_{i = 1}^{n}X_i^2$ , what is ?

3

The purpose of the t test is to do which of the following?

4

The purpose of the t test is to do which of the following?

Measures of Distributions