The Marks ( Out of 100) obtained by a group of students in a mathematics test are : 58, 67, 90, 58, 93, 84, 65, 59, 18, 57. A) Find the Highest & Lowest Marks obtained by the students... B) Find the range of marks obtained by the students... C) Find the Mean marks obtained by the group...
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Answer:
The marks obtained by a group of students are 85, 76, 90, 85, 39, 48, 56, 95, 81, 75. Now, arrange the marks in ascending order. Here, we can see the last marks in the ascending order is 95 and the first marks are 39. Hence, the highest marks are 95 and the lowest marks are 39.
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Step-by-step explanation:
A) Highest marks : 93, Lowest marks : 18
B) Range = Highest observation - Lowest observation [here marks]
Range = 93 - 18 = 75
C) Mean = Sum of observations / No. of observations
Mean = 58+67+90+58+93+84+65+59+18+57 / 10
Mean = 650 / 10 = 65
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