Page 194 - Data Science class 10
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B.  Long answer type questions:
           1.  Explain many to many joins with the help of an example.                            [CBSE Handbook]
           2.  What is interquartile range? How can you calculate it?

           3.  How do you interpret a z-score?
           4.  What is the z-score of a value of 105.5 in a set with µ = 122 and σ = 6.2?
           5.  Find the interquartile range value for the first ten prime numbers.
                                                                                                 Experiential Learning

             Higher Order Thinking Skills                                                               (HOTS)

              A student appeared for two tests. He secured 85 in the first and 80 in the second. The mean and deviation for the first
              were 60 and 15, respectively, while for the second it was 54 and 12, respectively. What conclusion can you make on
              comparing the student's performance for both exams?


             Applied Project                                                                     Experiential Learning

        The mean temperature of 50 airports was recorded to be 60 degrees with a standard deviation   Creativity
        of 6 degrees. If an airport records a temperature of 66 degrees what percentage of temperatures
        lie below this value?














































         Answers
         Exercise (Section A)
         A.  1. c  2. b  3. c   4. c  5. b  6. b
         B.  1. interquartile range   2. data joins    3. One to many    4. standard score  5. higher



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