Question

1. Find the range of heights of any ten
2. Organise the following marks in a class assessment, in a tabular form.
4, 6, 7, 5, 3, 5, 4, 5, 2, 6, 2, 5, 1, 9, 6, 5, 8, 4, 6, 7
(1) Which number is the highest?
(iii) What is the range of the data?
hole numbers.
(ii) Which number is the lower
(iv) Find the arithmetic mean.
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Answer 1

Answer:

1. numbers= 1,2,3,4,5,6,7,8,9,11

range =maximum value-minimum value

range=11-1

=10

therefore range =10

2.i) 9 is highest number

ii)range =maximum value-minimum value

=9-1

=8

III)1 is the lowest number

iv)mean=total number of observation/number of observation

. mean=4+6+7+5+3+5+4+5+2+6+2+5+1+9+6+5+8+4+6+7/20

mean=100/20

mean=5

therefore mean =5

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