SciPy - Statistical Functions (scipy.stats) Basics
What is the output of this code?
from scipy.stats import poisson rv = poisson(3) print(round(rv.pmf(2), 4))
What is the output of this code?
medium📝 Predict Output Q4 of 15
Step-by-Step Solution
Solution:
Step 1: Calculate Poisson PMF for k=2, \( \mu=3 \)
PMF formula: \( P(k) = \frac{e^{-\mu} \mu^k}{k!} = \frac{e^{-3} 3^2}{2!} \approx 0.2240 \)Step 2: Confirm rounding and output
Using scipy's pmf method and rounding to 4 decimals gives 0.2240.Final Answer:
0.2240 -> Option DQuick Check:
PMF(2,3) = 0.2240 [OK]
Quick Trick: Use pmf(k) to get exact probability [OK]
Common Mistakes:
MISTAKES- Confusing pmf with cdf
- Incorrect factorial calculation
- Rounding errors
Master "Statistical Functions (scipy.stats) Basics" in SciPy
Want More Practice?
15+ quiz questions · All difficulty levels · Free
Free Signup - Practice All QuestionsMore SciPy Quizzes