Question

A logistic regression model computes z = 0.5x₁ + 1.2x₂ − 3. For an input with x₁=4 and x₂=1, what predicted probability P(y=1) does the sigmoid activation produce (rounded to 2 decimals), and what class does a 0.5 threshold assign?

A P ≈ 0.45, classified as Class 0
B P ≈ 0.55, classified as Class 1
C P ≈ 0.60, classified as Class 1
D P ≈ 0.20, classified as Class 0
E P ≈ 0.50, exactly at the decision boundary
Practice Next

Hey! Ask a query

🎓
Think You're Ready for RBI Grade B?
RBI Grade B 2026 Phase 1 Memory Based Paper
  • 200 Questions with Detailed Solutions
  • Section-wise Coverage (GA, English, Quant & Reasoning)