2. In a CBSE examination, 10 students scored the following marks in Mathematics and Science.
81 62 82 52 40 92 60 78 77 81
Mathematics
78 65 92 45 69 98 57 83 90 55
Calculate the range in each case.
Answers
Given : In a CBSE examination, 10 students scored the following marks in Mathematics and Science.
81 62 82 52 40 92 60 78 77 81
Mathematics
78 65 92 45 69 98 57 83 90 55
To Find : range in each case.
Solution:
case 1 :
81 62 82 52 40 92 60 78 77 81
arrange in order
40 52 60 62 77 78 81 81 82 92
Minimum = 40
Maximum = 92
Range = Maximum - Minimum
= 92 - 40
= 52
case 2:
78 65 92 45 69 98 57 83 90 55
arrange in order
45 55 57 65 69 78 83 90 92 98
Minimum = 45
Maximum = 99
Range = Maximum - Minimum
= 98 - 45
= 53
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Answer:
formula to find range
range = maximum - minimum
Maths
maximum = 98
Minimum = 45
Range= Maximum - Minimum
Range = 98 - 45
Range = 53
Science
Range = Maximum - Minimum
Range = 92-40
Range = 52