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ST (MMCP-Storage) - 2024-07-05T07:38:56.568Z)

Assignment Week 1

Introduction to Statistics for Data Science

Bias can be introduced at the stage of data collection, with surveys and questionnaires.

Cognitive bias is inbuilt into us as humans and how we think.

One way to remove bias is to use voluntary response samples.

Overfitting a model will help to remove bias.

Which of the following statements concerning bias are true?

Which of the following is a measure of dispersion?

It includes basic statistics such as the minimum and maximum values.

It helps you to simplify and summarize data.

It uses statistical tests to analyze whether a pattern in the data is due to chance.

It uses predictive techniques and hypothesis testing.

Which of the following statements regarding descriptive analysis are true?

Most of the data is clustered around one number or value.

There are always two or more significant peaks in the curve.

Only non-parametric statistical tests are appropriate.

Which of the following are characteristics of a normal curve?

What is the term given to the practice of choosing and presenting only the most beneficial or profitable results of a survey?

It informs you about the basic qualities of the data.

Which of the following statements regarding inferential analysis are true?

A company undertakes a survey of its employees' skill development. Which group can the findings from the survey be generalized to?

Which types of tests would you generally use if the numerical data has a non-normal distribution?

What is the probability of selecting a red card from a pack of 52 cards?

What is your view of the current taxation system for people claiming welfare?

Given the rising costs to the middle class, do you support increasing welfare payments?

Do you think that the welfare system is fair?

How can the taxation system be improved for people claiming welfare?

Which of the following is an example of a loaded question?

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