Ram appeared in his mid-term examination and his marks in different subjects were-Find the mean of this distribution of marks-

The correct option is A 75 The mean is determined by Sum of observations/No. of observations Sum of Marks obtained = 75 + 85 + 75 + 75 + 65 = 375 No. of subje ...

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Standard IX

Mathematics

Arithmetic Mean

Ram appeared ...

Question

Ram appeared in his mid-term examination and his marks in different subjects were:-

$\begin{matrix} Subject & Marks Science & 75 Maths & 85 Hindi & 75 English & 75 Social Science & 65 \end{matrix}$

Find the mean of this distribution of marks.

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Solution

The correct option is C
75

The mean is determined by $\frac{S u m o f o b s e r v a t i o n s}{N o . o f o b s e r v a t i o n s}$
Sum of Marks obtained = 75 + 85 + 75 + 75 + 65 = 375
No. of subjects = 5
Mean = $\frac{375}{5}$ = 75

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Ram appeared in his mid-term examination and his marks in different subjects were:- SubjectMarksScience75Maths85Hindi75English75Social Science65 Find the mean of this distribution of marks.

The correct option is C 75 The mean is determined by Sum of observationsNo. of observations Sum of Marks obtained = 75 + 85 + 75 + 75 + 65 = 375 No. of subjects = 5 Mean = 3755 = 75

Ram appeared in his mid-term examination and his marks in different subjects were:-

$\begin{matrix} Subject & Marks Science & 75 Maths & 85 Hindi & 75 English & 75 Social Science & 65 \end{matrix}$

Find the mean of this distribution of marks.

The correct option is C
75

The mean is determined by $\frac{S u m o f o b s e r v a t i o n s}{N o . o f o b s e r v a t i o n s}$
Sum of Marks obtained = 75 + 85 + 75 + 75 + 65 = 375
No. of subjects = 5
Mean = $\frac{375}{5}$ = 75