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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