Prepare a frequency distribution table for the scores given:
42,22,55,18,50,10,33,29,17,29,29,27,34,15,40,42,40,41,35,27,
44,31,38,19,54,55,38,19,20,30,42,59,15,19,27,23,40,32,28,51.
Take the class intervals as 10-20, 20-30, 30-40, 40-50, 50-60. From the frequency distribution table answer the following questions:
(i) What does the frequency corresponding to the class interval 20-30 indicate?
(ii) In which class intervals are the scores 10, 20 and 30 included?
(iii) Find the range of the scores.
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From the frequency distribution table:
i ) Frequency corresponding to the
class interval ( 20 - 30 ) is 10.
ii ) ( 20 - 30 )
iii ) Highest score = 59
Lowest score = 10
Range = Highest score - Lowest score
= 59 - 10
= 49
••••
i ) Frequency corresponding to the
class interval ( 20 - 30 ) is 10.
ii ) ( 20 - 30 )
iii ) Highest score = 59
Lowest score = 10
Range = Highest score - Lowest score
= 59 - 10
= 49
••••
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