Question

The marks obtained by 37 students of std 8 in a Test of 10 marks are given
below. Find the mean of the data.. -
2, 4, 4, 8, 6, 7, 3, 8, 9, 10, 10, 8, 9, 7, 6, 5. 4, 6, 7, 8, 4, 8, 9, 7, 6, 5, 10.9, 7.9.
10. 9. 6. 9. 9. 4. 7​

Answer 1

$\textbf{Given:}$

$\begin{array}{|c|c|c|}\cline{1-3}x_i&f_i&f_ix_i\\\cline{1-3}2&1&2\\3&1&3\\4&5&20\\5&2&10\\6&5&30\\7&6&42\\8&5&40\\9&8&72\\10&4&40\\\cline{1-3}&37&259\\\cline{1-3}\end{array}$

$\textbf{To find:}$

$\textsf{Mean of the given data}$

$\underline{\textbf{Formula used:}}$

$\boxed{\mathsf{Mean=\dfrac{\sum\,f_ix_i}{\sum\,f_i}}}$

$\mathsf{Using\;the\;above\;formula}$

$\mathsf{Mean=\dfrac{\sum\,f_ix_i}{\sum\,f_i}}$

$\mathsf{Mean=\dfrac{259}{37}}$

$\implies\boxed{\mathsf{Mean=7}}$

$\textbf{Answer:}$

$\textsf{Mean of the given data is 7}$

$\textbf{Find more:}$

The average salary of 150 workers is Rs. 75 per week . Out of these 150 workers 60 are female with average salary equal to Rs. 70 per week .Find out Average salary of male workers.

https://brainly.in/question/36763705

Answer 2

Answer:

Goli beta masti nahi

Step-by-step explanation:

Do it on your own.