1.Finding all Combinations of a List with Duplicates
2.Rolling Window Correlation of Two Vectors.
3.Probability of Finding the Normal Coin with Heads Up
4.Probability Comparison of Binomial Distributions
5.Binomial distribution and Bernoulli relationship explained.
6.Two Interview Questions on Queue Optimization
7.Object Function of Linear Regression and Regularization Techniques
8.Interview Questions: Programming and Language Skills
9.Four Interview Questions and Their Answers
10.Decoding Number to Letter Combinations
11.N-Box Money Dilemma: To Open or Not?
12.Correlation between Positive and Negative Parts of Normal Distribution
13.Postfix Evaluation Algorithm: Classic Approach and Extensions
14.Challenges in Probability and Brainteasers for Interviews
15.Programming Ability Assessment: Interval List Intersections in C++
16.Understanding Ridge Regression and Closed Form Solution
17.Maximum Subarray Length for a Strong Team
18.Factors to Consider When Replacing Null or Erroneous Entries in Datasets
19.Cumulative Distribution Function of X-axis
20.Minimize Variance for Weighted Sum
21.Monte Carlo and Simulation Techniques
22.Streaming Mean and Standard Deviation
23.Maximum Drawdown Calculation
24.Probability of Uniform Distribution Until Sum Exceeds 1
25.Linear Regression Assumptions and Interpretation of Negative R-squared
26.Standard Deviation Range Calculation
27.Generate an Event with Probability p Using a Fair Coin
28.Linear Regression and L2 Regularization
29.Expectation of R-squared in Linear Regression
30.Effect of Doubling Data on T-Statistics
31.Optimal Stopping Strategy
32.Expected Number of Observations
33.Random Points on a Circle
34.Dice and Coin Flip Probability
35.Decision Tree Basics
36.Random Walk Probability
37.Linear Regression Relationship
38.Calculating the Least Square Solution in Linear Regression
39.Annualizing the Sharpe Ratio
40.Expectation on a Unit Sphere
41.Correlation Coefficient Calculation
42.Monte Carlo Simulation and Statistical Follow-up
43.Machine Learning Algorithm Follow-up
1. Finding all Combinations of a List with Duplicates
求一个有duplicate的list的所有combinations"
2. Rolling Window Correlation of Two Vectors.
Given 2 vectors X and Y, rolling window of size m, return an array with rolling window correlation of X and Y?
3. Probability of Finding the Normal Coin with Heads Up
"一枚普通硬币，两枚只有Head的硬币，三枚只有ai的硬币，现六枚硬币一起抛，结果已知
一枚硬币是头向上(不一定是那一枚普通硬币头向上）
求那一枚普通硬币头向上的概率
4. Probability Comparison of Binomial Distributions
What is the probability of x being greater than y when x~binom(10,0.5) and y~binom(9,0.5)?
5. Binomial distribution and Bernoulli relationship explained.
Explain the relationship between binomial distribution and Bernoulli.
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