In a Poisson distribution, the probability of zero successes is e^{-λ}. If λ=3, this probability is approximately: MCQ with Answer and Explanation

Explanation:
As of 2023, India surpassed China to become the world's most populous country.

Explanation:
Laspeyres index = Σ(p₁q₀)/Σ(p₀q₀) × 100, using base period quantities (q₀) as weights, which may overstate inflation if consumers substitute away from goods with rising prices.

Explanation:
Inflation rate = (120-100)/100 × 100% = 20%.