Find the mean marks of students from the given cumulative frequency distribution.

Marks	Number of Students	Marks	Number of Students
$0 \mathrm{and} \mathrm{above}$	$80$	$60 \mathrm{and} \mathrm{above}$	$28$
$10 \mathrm{and} \mathrm{above}$	$77$	$70 \mathrm{and} \mathrm{above}$	$16$
$20 \mathrm{and} \mathrm{above}$	$72$	$80 \mathrm{and} \mathrm{above}$	$10$
$30 \mathrm{and} \mathrm{above}$	$65$	$90 \mathrm{and} \mathrm{above}$	$8$
$40 \mathrm{and} \mathrm{above}$	$55$	$100 \mathrm{and} \mathrm{above}$	$0$
$50 \mathrm{and} \mathrm{above}$	$43$

 

From the given data $25, 10, 40, 88, 45, 60, 77, 36, 18, 95, 56, 65, 70, 38 \mathrm{and} 83$. Find median.

From the given data $25, 10, 40, 88, 45, 60, 77, 36, 18, 95, 56, 65, 70, 38 \mathrm{and} 83$. Find upper quartile.

From the given data $25, 10, 40, 88, 45, 60, 77, 36, 18, 95, 56, 65, 70, 38 \mathrm{and} 83$. Find interquartile.

Find the mean, median and mode of the following distribution.

$8, 10, 7, 6, 10, 11, 6, 13, 10$

A boy scored the given marks in various class tests during a term, each test being marked out of $20$.

$15, 17, 16, 7, 10, 12, 14, 16, 19, 12, 16$

What are his modal marks?

A boy scored the given marks in various class tests during a term, each test being marked out of $20$.

$15, 17, 16, 7, 10, 12, 14, 16, 19, 12, 16$

What are his median marks?

A boy scored the given marks in various class tests during a term, each test being marked out of $20$.

$15, 17, 16, 7, 10, 12, 14, 16, 19, 12, 16$

What are his mean marks?

Find the mean, median and mode of the given marks obtained by $16$ Students in a class test, marked out of $10$ Marks.

$0, 0, 2, 2, 3, 3, 3, 4, 5, 5, 5, 5, 6, 6, 7, 8$