Q.13. Prepare the frequency distribution table using tally method from the data of rainfall (in cms) for
25 years.
5, 25, 16, 8, 12, 9, 1, 14, 21, 23, 2, 11, 22, 3, 2,5,11,7,25, 13, 17, 7, 2, 6,9
i. Find the mid points and class frequency.
ii.
Construct a frequency polygon.
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Answer:
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 the data.
ANSWER:
First, we will arrange the data in increasing order.
3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 7, 7
Frequency table of the above data:
Number of members Tally marks Number of families (frequency)
3 |||| 4
4 |||| 4
5 |||| || 7
6 ||| 3
7 || 2
Total 20
Step-by-step explanation:
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