The mean of the below-given data is __________.

Marks Obtained $\left({\mathrm{x}}_{\mathrm{i}}\right)$	$10$	$25$	$38$	$49$	$50$	$69$	$75$	$80$
Number of students $\left({\mathrm{f}}_{\mathrm{i}}\right)$	8	10	5	9	6	$8$	9	$5$

Let's analyze the data:

The formula of mean = $\overline{\mathrm{x}}=\frac{\sum {\mathrm{f}}_{\mathrm{i}}{\mathrm{x}}_{\mathrm{i}}}{\sum {\mathrm{f}}_{\mathrm{i}}}$

Hence, 

$$\begin{gathered} \overline{\mathrm{x}}=\frac{2888}{60} \\ = 48.13 \end{gathered}$$

Therefore, the mean of the grouped data is $48.13$.