ml-recall

#dense-layer

4 questions from Linear Algebra, Neural Network Basics

Timed test

4 questions · 4 min · score and explanations at the end

Take a test

Q 1 / 4Score 0 / 0

Shuffle questions

Question 1: Single choice

easyAI-checkedLinear Algebra

A batch holds 16 examples with 6 features each, one example per row of $X$ . A dense layer $Z = XW + b$ must produce 4 numbers per example. Which shapes are correct?

$W$ : $6 \times 4$ , $Z$ : $16 \times 4$ , $b$ : 4 entries1
$W$ : $4 \times 6$ , $Z$ : $16 \times 4$ , $b$ : 4 entries2
$W$ : $6 \times 4$ , $Z$ : $16 \times 4$ , $b$ : 16 entries3
$W$ : $16 \times 4$ , $Z$ : $6 \times 4$ , $b$ : 4 entries4

Keys: 1–9 select · Enter check / next