**Daily update | 12 April, 2022**

# StackExchange

#### Are $U=\frac{2X_1^2}{(X_2+X_3)^2}$ and $V=\frac{2(X_2-X_3)^2}{2X_1^2+(X_2+X_3)^2}$ independent?

**Source:** stats**Views:** 37**Score:** 4**Tags:** self-study mathematical-statistics normal-distribution independence

#### Can I use normal approximation for t-test?

**Source:** stats**Views:** 51**Score:** 2**Tags:** mathematical-statistics t-test proportion

#### How do you calculate the expected value of a discrete distribution without replacement?

**Source:** stats**Views:** 22**Score:** 2**Tags:** expected-value discrete-distributions

#### Implementation of a convolution layer in a cnn

**Source:** stats**Views:** 14**Score:** 1**Tags:** conv-neural-network

#### compute shortest distance to a different sink

**Source:** cs**Views:** 16**Score:** 1**Tags:** algorithms shortest-path dijkstras-algorithm