Question

Q4. The marks (out of 100) obtained by a group students in Maths Test are: 85,
76.90.98.99,50,48. a) Find the highest marks and lowest marks obtained by the
students. b) What is the Range of the marks obtained? (2 marks)​

Answer 1

Answer:

a) Highest marks - 99

Lowest marks - 48

b) Range = highest - lowest

Range = 99 - 48

Range = 51

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Answer 2

Step-by-step explanation:

a) See the descending order of the marks obtained by the students:

99<98<90<85<76<50<48

Highest marks obtained=99

Lowest marks obtained=48

b) The Range is the difference between the lowest and highest values. Example: In {4, 6, 9, 3, 7} the lowest value is 3, and the highest is 9. So the range is 9 − 3 = 6.

So, here the range is:

99 - 48 = 51