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Вивчайте Theoretical Questions | Statistics
Data Science Interview Challenge
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Зміст курсу

Data Science Interview Challenge

Data Science Interview Challenge

1. Python
2. NumPy
3. Pandas
4. Matplotlib
5. Seaborn
6. Statistics
7. Scikit-learn

book
Theoretical Questions

1. In hypothesis testing, what is the null hypothesis, and what is the alternative hypothesis?

2. If the p-value in a hypothesis test is 0.03, and the significance level (alpha) is set at 0.05, do you reject or fail to reject the null hypothesis?

3. Explain what a 95% confidence interval means in the context of estimating a population mean.

4. If two variables have a correlation coefficient of -0.85, what does this tell you about their relationship?

5. Causation implies that:

6. In a scatter plot with points forming a straight line sloping upward from left to right, what type of correlation is likely present?

7. What statistical test is commonly used to determine if a correlation coefficient is significantly different from zero?

8. If you want to assess whether a set of data follows a normal distribution, which statistical test or plot is most appropriate?

9. In which real-life situation can the Chi-squared test be used?

10. Which of the following best describes the Central Limit Theorem (CLT)?

11. Which statement best captures the essence of the Law of Large Numbers?

question mark

In hypothesis testing, what is the null hypothesis, and what is the alternative hypothesis?

Виберіть правильну відповідь

question mark

If the p-value in a hypothesis test is 0.03, and the significance level (alpha) is set at 0.05, do you reject or fail to reject the null hypothesis?

Виберіть правильну відповідь

question mark

Explain what a 95% confidence interval means in the context of estimating a population mean.

Виберіть правильну відповідь

question mark

If two variables have a correlation coefficient of -0.85, what does this tell you about their relationship?

Виберіть правильну відповідь

question mark

Causation implies that:

Виберіть правильну відповідь

question mark

In a scatter plot with points forming a straight line sloping upward from left to right, what type of correlation is likely present?

Виберіть правильну відповідь

question mark

What statistical test is commonly used to determine if a correlation coefficient is significantly different from zero?

Виберіть правильну відповідь

question mark

If you want to assess whether a set of data follows a normal distribution, which statistical test or plot is most appropriate?

Виберіть правильну відповідь

question mark

In which real-life situation can the Chi-squared test be used?

Виберіть правильну відповідь

question mark

Which of the following best describes the Central Limit Theorem (CLT)?

Виберіть правильну відповідь

question mark

Which statement best captures the essence of the Law of Large Numbers?

Виберіть правильну відповідь

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