CBSE Class 7 Answered
Following are the marks obtained by 15 girls in science (out of 100) 72,93,52,95,56,65,69,73,42,77,86,49,80,72,55 (a) What is the range? (b) What are the highest marks obtained by a student? (c) Calculate the mean marks.
Asked by Topperlearning User | 11 Nov, 2013, 02:13: AM
Expert Answer
(a) Marks arranged in an ascending order are as follows:
42, 49, 52, 55, 56, 65, 69, 72, 72, 73, 77, 80, 86, 93, 95
Highest marks = 95
Lowest marks = 42
Range = 95 - 42 = 53
(b) Highest marks obtained by a student: 95
(c) Number of observations = 15
Mean
42, 49, 52, 55, 56, 65, 69, 72, 72, 73, 77, 80, 86, 93, 95
Highest marks = 95
Lowest marks = 42
Range = 95 - 42 = 53
(b) Highest marks obtained by a student: 95
(c) Number of observations = 15
Mean
Answered by | 11 Nov, 2013, 04:13: AM
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