IBM Data Analyst Capstone Project Coursera Quiz Answers

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?

• NumPy
• Matplotlib
• Requests
• Pandas

Q2. How many job postings exist for Python?

• 11
• 78
• 53
• 51

Q3. Which programming language has the maximum number of job postings?

• Java
• C
• C++
• Python

Quiz 2: Graded Quiz: Web Scraping

Q1. Which language are developers paid the most according to the output of the web scraping lab?

• Java
• Swift
• C
• C++

Q2. Which of the following code segments will help to scrape all images from a html page?

• soup.find_all(“image”)
• soup.find_all(“img”)
• soup.findall(“pic”)
• soup.findall(“img”)

Quiz 3: Graded Quiz: Exploring Data

Q1. How many rows are in the data set?

• 11255
• 11525
• 11555
• 11552

Q2. How many columns are in the data set?

• 84
• 85
• 86
• 26

Q3. What type of column is “Age”?

• Text
• Nominal
• Numerical
• Categorical

IBM Data Analyst Capstone Project Week 02 Quiz Answers

Quiz 1: Graded Quiz: Duplicates

Q1. How many duplicate rows are there in the dataset?

• 124
• 154
• 99
• 145

Q2. How many duplicate values are there in the column Respondent?

• 99
• 154
• 10
• 96

Quiz 2: Graded Quiz:  Removing Duplicates

Q1. After removing the duplicate rows, how many rows are there in the dataset?

• 11398
• 9999
• 13456
• 12333

Q2. After removing the duplicate rows, how many unique rows are there in the column Respondent?

• 11398
• 11342
• 11999
• 11000

Quiz 3: Graded Quiz:  Missing Values

Q1. After removing the duplicate rows, how many blank rows are there under the column EdLevel?

• 280
• 231
• 0
• 112

Q2. After removing the duplicate rows, how many rows are missing under the column Country?

• 0
• 188
• 280
• 201

Quiz 4: Graded Quiz:   Imputing Missing Values

Q1. What is the majority category under the column Employment?

• Employed part-time
• Employed full-time
• Retired
• 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?

• mean
• median
• max
• min

Quiz 5: Graded Quiz:  Normalizing Data

Q1. How many unique values are there in the CompFreq column?

• 5
• 11398
• 3
• 7

Q2. After removing the duplicate rows, how many respondents are being paid yearly?

• 9999
• 3259
• 312
• 6073

Q3. What is the median NormalizedAnnualCompensation?

• 9000
• 6132520
• 100000
• 8080

IBM Data Analyst Capstone Project Week 03 Quiz Answers

Quiz 1: Graded Quiz: Distribution

Q1. What is the median Age of survey respondents?

• 30
• 28
• 29
• 31

Q2. What is the median ConvertedComp of  respondents who have identified themselves as ‘Woman’? 

• 54678
• 55467
• 56453
• 57708

Q3. Based on the histogram, which age group has the highest number of survey respondents?

• 32-40
• 40-48
• 16-24
• 24-32

Quiz 2: Graded Quiz: Handling Outliers

Q1. What is the median ConvertedComp before removing outliers?

• 55768
• 78675
• 57745
• 55342

Q2. What is the median ConvertedComp after removing outliers?

• 52704
• 53564
• 55672
• 56456

Q3. Based on the boxplot of ‘Age’ how many outliers do you see below Q1?

• 0
• 3
• 2
• 1

Q4. What is the mean ConvertedComp after removing outliers?

• 59883
• 10000
• 34567.34
• 2378.56

Quiz 3: Graded Quiz: Correlation

Q1. Which column has a negative correlation with “Age“?

• Respondent
• CodeRevHrs
• WorkWeekHrs
• CompTotal

Q2. Which column has the highest correlation with “Age”?

• WorkWeekHrs
• ConvertedComp
• Respondent
• CompTotal

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?

• 19.1
• 16.4
• 18.8
• 20.9

Q3. In the list of most popular languages respondents wish to learn next year, what is the rank of Python?

• 2
• 4
• 1
• 3

Q3. How many respondents indicated that they currently work with ‘SQL’?

• 7106
• 5132
• 5012
• 5321

Q4. How many respondents indicated that they work on ‘MySQL’ only?

• 474
• 657
• 876
• 736

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?

• Negative
• No Correlation
• Positive
• Highly Negative

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