Question

data handling sums with answers

Answer 1

1. The number of members in 20 families are given below: 

    4, 6, 5, 5, 4, 6, 3, 3, 5, 5, 3, 5, 4, 4, 6, 7, 3, 5, 5, 7 

Prepare a frequency distribution of data. 


2. A dice was thrown 30 times and the following outcomes were noted: 

2, 1, 2, 4, 6, 1, 2, 3, 6, 5, 4, 4, 3, 1, 1, 3, 1, 1, 5, 6, 6, 2, 2, 3, 4, 2, 5, 5, 6, 4 

Prepare a frequency table.


3.The following data gives the number of children in 40 families: 

1, 2, 6, 5, 1, 5, 1, 3, 2, 6, 2, 3, 4, 2, 0, 4, 4, 3, 2, 2, 0, 0, 1, 2, 2, 4, 3, 2, 1, 0, 5, 1, 2, 4, 3, 4, 1, 6, 2, 2

Represent it in the form of a frequency distribution. 




4. The marks obtained by 40 students of a class in an examination are given below: 

8, 47, 22, 31, 17, 13, 38, 26, 3, 34, 29, 11, 22, 7, 15, 24, 38, 31, 21, 35, 42, 24, 45, 23, 21, 27, 29, 49, 25, 48, 21, 15, 18, 27, 19, 45, 14, 34, 37, 34 

Prepare a frequency distribution table with equal class intervals, starting from 0-10 (where 10 is not included). 


5. The electricity bills (in dollars) of 25 houses of a certain locality for a month are given below: 
324, 700, 617, 400, 356, 365, 435, 506, 548, 736, 780, 378, 570, 685, 312, 630, 584, 674, 754, 776, 596, 745, 565, 763, 472

Arrange the above data in increasing order and form a frequency table using equal class intervals, starting from 300-400, where 400 is not included
Answers:

1.

Number of members 3 4 5 6 7
Frequency 4 4 7 3 2

2.

Outcome 1 2 3 4 5 6
Frequency 6 6 4 5 4 5

3.

Wages (in Dollars) 1 2 3 4 5 6
Frequency 4 7 12 5 6 3 3

4.

Marks। 0 - 10, 10 - 20 ,20 - 30 ,30 - 40 ,40 - 50
Frequency 3 8 14 9 6

5.

Amount of the bill 

300 - 400 ,400 - 500 ,500 - 600, 600 - 700
f 5 3 6 4
,700 - 800
f 7