write is mean of a group of a observation find mean of the given observation of the 1,3,8,21,31,24,80​

Question

write is mean of a group of a observation find mean of the given observation of the 1,3,8,21,31,24,80​

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Ivy 2 years 2021-07-15T14:43:55+00:00 2 Answers 0 views 0

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  1. Skylar
    0
    2021-07-15T14:44:56+00:00
    Reply

    Answer:

    the mean = aum of observation/no. of observation

    so

    mean=1+3+8+21+31+24+80/7

  2. Emery
    0
    2021-07-15T14:45:26+00:00
    Reply

    Given :

    • Given observations are 1, 3, 8, 21, 31, 24, 80

    To Find :

    • Mean of the given observations.

    Calculation :

    In order to calculate the mean of the the given observations, formula is given by,

    \underline{ \boxed{ \tt{Mean = \dfrac{Sum \: of \: all \: observations}{Number \: of \: observations}}}}

    • Number of all observations is 7.

    Firstly, let’s calculate the sum of all numbers,

    \rightarrow \bf 1 + 3 + 8 + 21 + 31 + 24 + 80 \\

    On adding the numbers,

    \rightarrow{ \pink{\boxed{\bf 168}}}

    Therefore, sum of all observations is 168.

    Putting the values,

    Now let’s substitute values in the equation,

    Using formula –

    \underline{ \boxed{ \tt{Mean = \dfrac{Sum \: of \: all \: observations}{Number \: of \: observations}}}}

    Plugging the values,

    \longrightarrow \bf Mean = \dfrac{168}{7} \\

    On dividing the numbers,

    \longrightarrow{ \underline{ \boxed{\bf Mean = 24}}} \: \blue{\bigstar}

    Henceforth,

    • The mean of the given observations is 24.

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