Page 133 - Data Science class 11
P. 133

3.  What is causal relationships? Describe this with two examples.
               4.  Explain the effects of different duration of light on the growth of radish seedlings.
               5.  What do you understand by perception of time assessment? Also give examples to substantiate your answer.


                 Higher Order Thinking Skills                                                               (HOTS)
                Please answer the questions below in no less than 200 words.

               1.   Is there a correlation between speaking and writing skills of an individual?
                  Does it get improved by experience?                                                [CBSE Handbook]
               2.   If outdoor runners have higher skin disease occurrences due to time exposure in the sun, think of an independent
                  variable that can be used to test the relationship between running and skin diseases. What alternatives can one look
                  for, to negate the problem arising out of running outdoors in the sun?              [CBSE Handbook]
               3.   We have already studied the influence of gender, age and size on reaction or response time. Think of other factors that
                  can affect the response time and elucidate each of these factors.


                 Applied Project
                Consider a company manufacturing metal utensil for home cookware. The company has a factory in which 200 workers
                work on an everyday basis. Describe in detail, how the set-up of the factory (proper equipment, safety measure and
                infrastructure) has a correlation and causal relationship with workers of the factory. Also, try to derive the correlation
                between workers of the factory, the profitability and sustenance of the company. One should also think about the end
                product the customers will be using and what difference it may cause to their lives.
                                                                                                      [CBSE Handbook]





































            Answers
             A.   1. a.    2. d.    3. d     4. c.   5. a.    6. a.    7. a.    8. c.    9. a.   10. b.   11. b.
                 12. b.

             B.   1. Causation      2. data quality   3. Positive correlation   4. Proximate   5. visual response latency




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