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IBM Data Analyst Capstone Project Week 01 Quiz Answers
Quiz 1: Graded Quiz: Collecting Data
Q1. Which python module helps you to easily access an API?
Q2. How many job postings exist for Python?
Q3. Which programming language has the maximum number of job postings?
Quiz 2: Graded Quiz: Web Scraping
Q1. Which language are developers paid the most according to the output of the web scraping lab?
Q2. Which of the following code segments will help to scrape all images from a html page?
Quiz 3: Graded Quiz: Exploring Data
Q1. How many rows are in the data set?
Q2. How many columns are in the data set?
Q3. What type of column is “Age”?
IBM Data Analyst Capstone Project Week 02 Quiz Answers
Quiz 1: Graded Quiz: Duplicates
Q1. How many duplicate rows are there in the dataset?
Q2. How many duplicate values are there in the column Respondent?
Quiz 2: Graded Quiz: Removing Duplicates
Q1. After removing the duplicate rows, how many rows are there in the dataset?
Q2. After removing the duplicate rows, how many unique rows are there in the column Respondent?
Quiz 3: Graded Quiz: Missing Values
Q1. After removing the duplicate rows, how many blank rows are there under the column EdLevel?
Q2. After removing the duplicate rows, how many rows are missing under the column Country?
Quiz 4: Graded Quiz: Imputing Missing Values
Q1. What is the majority category under the column Employment?
- Employed part-time
- Employed full-time
- Independent contractor, freelancer, or self-employed
Q2. Under the column ” UndergradMajor”, which category has the minimum number of rows?
- Computer Science
- Health Science
- Fine Arts
- Information Systems
Q3. The column ‘ConvertedComp’ contains the annual compensation of the survey respondents. What is the best approach to impute the missing values in this column?
Quiz 5: Graded Quiz: Normalizing Data
Q1. How many unique values are there in the CompFreq column?
Q2. After removing the duplicate rows, how many respondents are being paid yearly?
Q3. What is the median NormalizedAnnualCompensation?
IBM Data Analyst Capstone Project Week 03 Quiz Answers
Quiz 1: Graded Quiz: Distribution
Q1. What is the median Age of survey respondents?
Q2. What is the median ConvertedComp of respondents who have identified themselves as ‘Woman’?
Q3. Based on the histogram, which age group has the highest number of survey respondents?
Quiz 2: Graded Quiz: Handling Outliers
Q1. What is the median ConvertedComp before removing outliers?
Q2. What is the median ConvertedComp after removing outliers?
Q3. Based on the boxplot of ‘Age’ how many outliers do you see below Q1?
Q4. What is the mean ConvertedComp after removing outliers?
Quiz 3: Graded Quiz: Correlation
Q1. Which column has a negative correlation with “Age“?
Q2. Which column has the highest correlation with “Age”?
IBM Data Analyst Capstone Project Week 04 Quiz Answers
Quiz 1: Graded Quiz: Visualizing Relationship
Q1. Based on the scatter plot of Age and WorkWeekHrs , what kind of correlation do you see between them?
- Very high positive correlation
- Difficult to clearly identify from the scatter plot.
- No correlation
- Very High negative correlation.
Quiz 2: Graded Quiz: Visualizing Composition of Data
Q1. In the pie chart of top 5 databases, respondents wish to learn next year, what is the percentage of Mongodb?
Q3. In the list of most popular languages respondents wish to learn next year, what is the rank of Python?
Q3. How many respondents indicated that they currently work with ‘SQL’?
Q4. How many respondents indicated that they work on ‘MySQL’ only?
Quiz 3: Graded Quiz: Visualizing Comparison of Data
Q1. Majority of the survey responders are
- Developer – front-end
- Developer – full-stack
- Developer – mobile
- Developer – back-end
Q2. Based on the Line Chart of Age and median ConvertedComp for the age group 25-30, what kind of correlation do you see between Age and median ConvertedComp?
- No Correlation
- Highly Negative