Math, asked by vineeet, 1 year ago

how to find median class in grouped data

Answers

Answered by aubie2018

To calculate the mean of grouped data, the first step is to determine the midpoint (also called a class mark) of each interval, or class. These midpoints must then be multiplied by the frequencies of the corresponding classes. The sum of the products divided by the total number of values will be the value of the mean.

vineeet: i ask median

aubie2018: my bad

aubie2018: To find the median number:
Put all the numbers in numerical order.
If there is an odd number of results, the median is the middle number.
If there is an even number of results, the median will be the mean of the two central numbers.

Answered by tharunstar85

$\huge\boxed{\underline{\underline{\purple{\mathfrak{Answer}}}}}$

$take \: the \: \frac{n}{2} th \: term \\ \frac{ \frac{n}{2} + cf }{f} \times h \\ where \: n = total of \: all \: frequency \\ cf = cumiliative \: frequency \\ f = frequency \\ and \: h = class \: interval$

$<marquee direction="left">$ follow the above mentioned steps!!

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