Conditional probabilities P R AC TIC IN G STATISTIC S IN TE R VIE W QU E STION S IN P YTH ON Conor De w e y Data Scientist , Sq u arespace
Co u rse o v er v ie w 1. Probabilit y and sampling distrib u tions 2. E x plorator y data anal y sis 3. Statistical e x periments 4. Regression and classi � cation PRACTICING STATISTICS INTERVIEW QUESTIONS IN PYTHON
Q u ick re v ie w 1 Wikimedia PRACTICING STATISTICS INTERVIEW QUESTIONS IN PYTHON
Ba y es ' theorem 1 Wikimedia PRACTICING STATISTICS INTERVIEW QUESTIONS IN PYTHON
Probabilit y tree diagrams 1 Wikimedia PRACTICING STATISTICS INTERVIEW QUESTIONS IN PYTHON
E x ample : passing the inter v ie w PRACTICING STATISTICS INTERVIEW QUESTIONS IN PYTHON
E x ample : passing the inter v ie w both = 0.25 * 0.40 print(both) coding = (0.25 * 0.40) + (0.75 * 0.20) print(coding) 0.1 0.25 stats_given_coding = both / coding print(stats_given_coding) 0.4 PRACTICING STATISTICS INTERVIEW QUESTIONS IN PYTHON
S u mmar y Conditional probabilities Ba y es ' theorem Probabilit y tree diagrams PRACTICING STATISTICS INTERVIEW QUESTIONS IN PYTHON
Let ' s prepare for the inter v ie w! P R AC TIC IN G STATISTIC S IN TE R VIE W QU E STION S IN P YTH ON
Central limit theorem P R AC TIC IN G STATISTIC S IN TE R VIE W QU E STION S IN P YTH ON Conor De w e y Data Scientist , Sq u arespace
What does it mean ? 1 Wikimedia PRACTICING STATISTICS INTERVIEW QUESTIONS IN PYTHON
Wh y does it matter ? 1 Wikimedia PRACTICING STATISTICS INTERVIEW QUESTIONS IN PYTHON
La w of large n u mbers 1 StackE x change PRACTICING STATISTICS INTERVIEW QUESTIONS IN PYTHON
Sim u lating CLT in P y thon np.random.randint(start, end, size) 1 Ho w to Vis u ali z e the Central Limit Theorem in P y thon PRACTICING STATISTICS INTERVIEW QUESTIONS IN PYTHON
List comprehension x = [1,2,3,4] out = [] for item in x: out.append(item**2) print(out) [1, 4, 9, 16] x = [1,2,3,4] out = [item**2 for item in x] print(out) [1, 4, 9, 16] PRACTICING STATISTICS INTERVIEW QUESTIONS IN PYTHON
S u mmar y Central limit theorem La w of large n u mbers Sim u lating die rolls List comprehension PRACTICING STATISTICS INTERVIEW QUESTIONS IN PYTHON
Let ' s prepare for the inter v ie w! P R AC TIC IN G STATISTIC S IN TE R VIE W QU E STION S IN P YTH ON
Probabilit y distrib u tions P R AC TIC IN G STATISTIC S IN TE R VIE W QU E STION S IN P YTH ON Conor De w e y Data Scientist , Sq u arespace
What ' s a probabilit y distrib u tion ? Indicates likelihood of an o u tcome Probabilities m u st add u p to 1 1 Wikimedia PRACTICING STATISTICS INTERVIEW QUESTIONS IN PYTHON
O v er v ie w of common distrib u tions 1 Common Probabilit y Distrib u tions : The Data Scientists Crib Sheet PRACTICING STATISTICS INTERVIEW QUESTIONS IN PYTHON
O v er v ie w of common distrib u tions 1 Common Probabilit y Distrib u tions : The Data Scientists Crib Sheet PRACTICING STATISTICS INTERVIEW QUESTIONS IN PYTHON
Berno u lli distrib u tion plt.hist(bernoulli.rvs(p=0.5, size=1000)) PRACTICING STATISTICS INTERVIEW QUESTIONS IN PYTHON
Binomial distrib u tion plt.hist(binom.rvs(2, 0.5, size=10000)) PRACTICING STATISTICS INTERVIEW QUESTIONS IN PYTHON
Normal distrib u tion 1 Wikimedia PRACTICING STATISTICS INTERVIEW QUESTIONS IN PYTHON
Poisson distrib u tion 1 Wikimedia PRACTICING STATISTICS INTERVIEW QUESTIONS IN PYTHON
Poisson distrib u tion 1 120 Data Science Inter v ie w Q u estions PRACTICING STATISTICS INTERVIEW QUESTIONS IN PYTHON
S u mmar y De � nition of probabilit y distrib u tions O v er v ie w of common distrib u tions Berno u lli , binomial , normal , and Poisson PRACTICING STATISTICS INTERVIEW QUESTIONS IN PYTHON
Let ' s prepare for the inter v ie w! P R AC TIC IN G STATISTIC S IN TE R VIE W QU E STION S IN P YTH ON
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