Data Science Quiz
Test Your Data Science Knowledge
Welcome to the Data Science Quiz! This quiz is designed to challenge your understanding of key concepts in data science, including algorithms, correlation, and data analysis methods.
Participate in this fun and engaging quiz to:
- Assess your data science skills
- Learn about important concepts
- Compete with friends and colleagues
Which of the following testing is concerned with making decisions using data ?
Casual
Hypothesis
Probability
None of the mentioned
Two bacteria cultures, A and B, were set up in two different dishes, each covering 50% of its dish. Over 20 days, bacteria A's percentage of coverage increased to 70% and bacteria B's percentage of coverage reduced to 40%:
Approximately, what is the Pearson correlation coefficient of bacteria B's coverage and the number of days passed?
-1
[-0.6, -0.2]
0
[0.2, 0.6]
1
Your company is running a test that is designed to compare two different versions of the company’s website. Version A of the website is shown to 60% of users, while version B of the website is shown to the remaining 40%. The test shows that 8% of users who are presented with version A sign up for the company’s services, as compared to 4% of users who are presented with version B. If a user signs up for the company’s services, what is the probability that she/he was presented with version A of the website?
20%
75%
6.6%
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