Question

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Answer 1

Explanation:

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Answer 2

Explanation:

Given :-

4,6,7,5,3,5,4,5,2,6,2,5,1,9,6,5,8,4,6,7

To find :-

Organise the data into a tabular form and answer the following :

1) Which number is the highest ?

2) Which number is the lowest ?

3) Which is the range of the data ?

4) Find the arithmetic mean ?

Solution :-

Given observations of a data :

4,6,7,5,3,5,4,5,2,6,2,5,1,9,6,5,8,4,6,7

Heighest value = 9

1) Height number = 9

Lowest value = 1

2) Lowest Number = 1

We know that

3) Finding Range of the data :-

The difference between the heighest and Lowest values is called the Range of the data

Range = Heighest value-Lowest value

=> Range = 9-1

=> Range = 8

4) Finding Arithmetic Mean :-

Given observations are :

4,6,7,5,3,5,4,5,2,6,2,5,1,9,6,5,8,4,6,7

Sum of the observations

= 4+6+7+5+3+5+4+5+2+6+2+5+1+9+6+5+8+4+6+7

=100

Number of all observations = 20

We know that

Arithmetic Mean = Sum of all observations/Number of all observations

=> AM = 100/20

=> AM = 5

Answer:-

1) Height number = 9

2)Lowest Number = 1

3)Range of the data = 8

4) Arithmetic Mean of the data = 5

Used formulae:-

• The difference between the heighest and Lowest values is called the Range of the data

• Range = Heighest value-Lowest value

• Arithmetic Mean = Sum of all observations/Number of all observations