1
Question
In a city 45 families were surveyed for the number of Cell phones they used. Prepare a frequency array based on their replies as recorded below.
1
3
2
2
2
2
1
2
1
2
2
3
3
3
3
3
3
2
3
2
2
6
1
6
2
1
5
1
5
3
2
4
2
7
4
2
4
3
4
2
0
3
1
4
3
| 1 | 3 | 2 | 2 | 2 | 2 | 1 | 2 | 1 | 2 | 2 | 3 | 3 | 3 | 3 |
| 3 | 3 | 2 | 3 | 2 | 2 | 6 | 1 | 6 | 2 | 1 | 5 | 1 | 5 | 3 |
| 2 | 4 | 2 | 7 | 4 | 2 | 4 | 3 | 4 | 2 | 0 | 3 | 1 | 4 | 3 |
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Solution
Frequency Array of appliances being used by households
No. of Domestic Appliances
No. of Households
0
1
1
7
2
15
3
12
4
5
5
2
6
2
7
1
Total
45
|
No. of Domestic Appliances |
No. of Households |
|
0 |
1 |
|
1 |
7 |
|
2 |
15 |
|
3 |
12 |
|
4 |
5 |
|
5 |
2 |
|
6 |
2 |
|
7 |
1 |
|
Total |
45 |
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6
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