Page 132 - Data Science class 11
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3. Which of the following is an example of NO correlation? [CBSE Handbook]
a. The age of a child and his/her shoe size
b. The age of a child and his/her height
c. The age of a child and the number of pets owned
d. The age of a child and vocabulary of words learned
4. Which one of the below-mentioned scenarios does not appear most likely to be from causation? [CBSE Handbook]
a. Reading one hour per day increases vocabulary
b. People who are homeless are more likely to have mental health issues
c. The weight of a person has nothing to do with the risk of heart disease
d. In India, as car sales increase, the birth rate also increases
5. A researcher uses an experimental design to study the effect of music on memory. In this experiment, the Independent
Variable is:
a. music b. memory
c. both music and memory d. neither music nor memory
6. Data from a correlational study is usually shown as a:
a. scatterplot b. pie chart
c. bar graph d. Either b or c
7. Research shows that the older a person is, the larger their vocabulary. This is an example of a:
a. positive correlation b. negative correlation
c. causal correlation d. partial correlation
B. State whether these statements are true or false.
1. Radish belongs to the Brassicaceae or mustard family. __________
2. Perception of time assessment is the ability to detect, process and respond to a stimulus. __________
3. One needs to perform a trial assessment to understand what is meant by the cause and effect relationship. __________
4. Causation cannot occur without correlation. __________
5. Lack of preparation is one of the leading causes for project delays and budget overruns. __________
Standard Questions (Section B)
A. Short answer type questions:
1. An example of causation could be when a person plays a lot in a casino, and as a consequence loses all his/her money.
Explain what is the cause and effect here.
2. What is the role of causation in a trial assessment?
3. Explain the concept of agent causation.
4. What do you understand by zero correlation?
5. Write a short note on data quality assessment.
B. Long answer type questions:
1. Write down three facts and justify why you think they are facts. [CBSE Handbook]
2. What is causation? (Support your answer with two examples of causation.) [CBSE Handbook]
130 Touchpad Data Science-XI

