Question

Which of the following is NOT a statistical question?



How many jelly beans fit in a typical mason jar?


Which color jelly bean appears the most in a bag?


How many blue jelly beans are in your mason jar?


Who was closest in guessing the number of jelly beans?

Question: 2
What is the first stage of the Data Science Life Cycle?



Analyze Data


Interpret Data


Ask Questions


Collect Results

Question: 3
Which step of the data science life cycle involves making sense of findings and presenting them?



Consider Data


Analyze Data


Interpret Data


Clean Data

Question: 4
Which of the following is an example of quantitative data?



Hair color


Zip code


Price of soup


Letter grade

Question: 5
Which of the following is an example of qualitative data?



Student age


Grade average


Color of hair dye


Height in inches

Question: 6
Which of these is a statistical question?



How old am I?


What is the average age of students at my school?


What time is lunch today?


How tall is my best friend?

Question: 7
Why is cleaning a dataset important?



It increases the number of records.


It makes the dataset easier to store.


It ensures consistency and accuracy


It reduces the file size.

Question: 8
Removing duplicate entries from a dataset helps to:



Add more detail


Prevent skewed results


Make charts colorful


Speed up typing

Question: 9
Which method is often used to address missing values?



Add random data


Delete the entries


Ignore them entirely


Turn them into zeros

Question: 10
What does a pivot table allow you to do?



Write new formulas


Create curated views of data


Merge datasets together


Delete duplicate entries

Question: 11
Column charts are most useful for:



Comparing categories


Showing progression over time


Displaying percentages of a whole


Analyzing correlations

Question: 12
Scatter plots are most useful for:



Showing how one variable changes over time


Comparing proportions


Identifying relationships between two variables


Showing totals across categories

Question: 13
Which correlation coefficient suggests a strong positive correlation?



-0.98


0.987


0.34


-0.12

Question: 14
What is the mean of a dataset?



The most frequently occurring value


The middle value


The average of all values


The largest value

Question: 15
Which part of the life cycle would creating a pivot table belong to?



Ask Questions


Consider Data


Analyze Data


Interpret Data

Answer 1

Here are the answers:

1) How many blue jelly beans are in your mason jar? (NOT a statistical question)
2) Ask Questions
3) Interpret Data
4) Price of soup
5) Color of hair dye
6) What is the average age of students at my school?
7) It ensures consistency and accuracy
8) Prevent skewed results
9) Delete the entries
10) Create curated views of data
11) Comparing categories
12) Identifying relationships between two variables
13) 0.987
14) The average of all values
15) Analyze Data