1.Complete the following table.(Draw table on answer sheet)
Nos. of children in a
family(xi)
Tally marks Frequency ( fi ) fi xi
1 13 _____
2 7 14
3 2 6
4 3 _____
N= ______ fi xi = _____
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Answer:
No of children in a family(xi) Tally marks Frequency(fi) fi*xi
1 ||||I I|||| |II 13 13
2 I|||| || 7 14
3 || 2 6
4 ||| 3 12
N=25 fi*xi=45
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