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Question
The final marks in mathematics of $$30$$ students are as follows: $$53, 61, 48, 60, 78, 68, 55, 100, 67, 90$$ $$75, 88, 77, 37, 84, 58, 60, 48, 62, 56$$ $$44, 58, 52, 64, 98, 59, 70, 39, 50, 60$$ What is the lowest score ?
A
$$37$$
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Solution
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Correct option is A. $$37$$ The correct answer is 37
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Q1
The final marks in mathematics of 30 students are as follows:
53, 61, 48, 60, 78, 68, 55, 100, 67, 90
75, 88, 77, 37, 84, 58, 60, 48, 62, 56
44, 58, 52, 64, 98, 59, 70, 39, 50, 60
(i) Arrange these marks in the ascending order, 30 to 39 one group, 40 to 49 second group, etc.
Now answer the following:
(ii) What is the highest score?
(iii) What is the lowest score?
(iv) What is the range?
(v) If 40 is the pass mark how many have failed?
(vi) How many have scored 75 or more?
(vii) Which observations between 50 and 60 have not actually appeared?