Question

Please I need answer fast​

Answer 1

⋆Frequency distributiontable

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To find:

• Mean of the given data.

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Solution:

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➲ We have a data of daily expenditure on food of 50 households, and need to find the mean.

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First of all, we will make a frequency distribution table (attachment).

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☆ Consider

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$No. \: of \: households = \bf{f_i}fi$

$Class \: marks = \bf{x_i}xi$

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※ In this question, we will use direct method to find the mean.

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⠀⠀⠀⠀⠀⠀❏ Formula used

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$\large{\boxed{\boxed{\sf{\overline{X} = \dfrac{\sum{f_i x_i}}{\sum{f_i}}}}}}$

Here,

$\rm{\sum{f_i x_i} = 10550}$

$\rm{\sum{f_i} = 50}∑fi$

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Substituting the values

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$\tt\longrightarrow{Mean = \dfrac{10550}{50}}$

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$\tt\longrightarrow{Mean = 211}$

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Hence,

Mean of the given data is 211.

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