(CBSE 2019)The daily expenses of 40 families has been shown by the fol

1.	(CBSE 2019)The daily expenses of 40 families has been shown by the followingfrequency distribution:Expenses500-700700-900900-1100 1100-1300 1300-150061097Number ofSfamiliesFind the mean daily expenses.(CBSE 2015]
Answer» Solution :- Expenses No. of Families(Fi) Xi FiXi 500-700 6 600 3600 700-900 8 800 6400 900-1100 10 1000 10000 1100-1300 9 1200 10800 1300-1500 7 1400 9800 ⅀Fi = 40 ⅀FiXi = 40600 we know that, Mean = ⅀FiXi/ ⅀Fi . therefore, → Mean = 40600 / 40 → Mean = 1015 (Ans.) Hence, the mean daily expenses of the FAMILY is 1015 . Learn more :- calculate the MEDIAN and mode from the following income between (rs)100-200 100-300 100-400 100-500 100-600 no of person... brainly.in/question/23585381 Some students of class X donated for the welfare of old age persons. The contributions are shown in the following distri... brainly.in/question/17314012

(CBSE 2019)The daily expenses of 40 families has been shown by the followingfrequency distribution:Expenses500-700700-900900-1100 1100-1300 1300-150061097Number ofSfamiliesFind the mean daily expenses.(CBSE 2015]

Answer»

Solution :-

Expenses No. of Families(Fi) Xi FiXi

500-700 6 600 3600

700-900 8 800 6400

900-1100 10 1000 10000

1100-1300 9 1200 10800

1300-1500 7 1400 9800

⅀Fi = 40 ⅀FiXi = 40600

we know that,

Mean = ⅀FiXi/ ⅀Fi .

therefore,

→ Mean = 40600 / 40

→ Mean = 1015 (Ans.)

Hence, the mean daily expenses of the FAMILY is 1015 .

Learn more :-

calculate the MEDIAN and mode from the following income between (rs)100-200 100-300 100-400 100-500 100-600 no of person...

brainly.in/question/23585381

Some students of class X donated for the welfare of old age persons. The contributions are shown in the following distri...

brainly.in/question/17314012

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