Find the mean of the distribution: Class | vedclass

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(D) To find the mean,we first calculate the class mark $(x_i)$ for each class interval using the formula: $x_i = \frac{	ext{Upper limit} + 	ext{Lowe

Vedclass · Accepted Answer

$5.5$

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(D) To find the mean,we first calculate the class mark $(x_i)$ for each class interval using the formula: $x_i = \frac{	ext{Upper limit} + 	ext{Lower limit}}{2}$.						Class			Class mark $(x_i)$			Frequency $(f_i)$			$f_i x_i$							$1-3$			$2$			$9$			$18$							$3-5$			$4$			$22$			$88$							$5-7$			$6$			$27$			$162$							$7-10$			$8.5$			$17$			$144.5$							Total			-			$\Sigma f_i = 75$			$\Sigma f_i x_i = 412.5$			The mean $(\bar{x})$ is calculated as:$\bar{x} = \frac{\Sigma f_i x_i}{\Sigma f_i} = \frac{412.5}{75} = 5.5$.Thus,the mean of the given distribution is $5.5$.

Class	$12.5-17.5$	$17.5-22.5$	$22.5-27.5$	$27.5-32.5$	$32.5-37.5$
Frequency	$2$	$22$	$19$	$14$	$13$

Class	$20-30$	$30-40$	$40-50$	$50-60$	$60-70$	$70-80$	$80-90$
Frequency	$8$	$12$	$27$	$43$	$55$	$37$	$18$

Find the mean of the distribution:

Class $1-3$ $3-5$ $5-7$ $7-10$

Frequency $9$ $22$ $27$ $17$

Similar Questions

Construct the cumulative frequency distribution of the following distribution:

Class $12.5-17.5$ $17.5-22.5$ $22.5-27.5$ $27.5-32.5$ $32.5-37.5$

Frequency $2$ $22$ $19$ $14$ $13$

In the formula $M = l + \frac{(\frac{n}{2} - cf)}{f} \times h$ for the median,$l = \ldots \ldots \ldots$

Find the mode of the following frequency distribution:

Class $20-30$ $30-40$ $40-50$ $50-60$ $60-70$ $70-80$ $80-90$

Frequency $8$ $12$ $27$ $43$ $55$ $37$ $18$

The class length of the excluding type of class $20-30$ in a frequency distribution is .......

Is it correct to say that an ogive is a graphical representation of a frequency distribution? Give reason.

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Find the mean of the distribution: Class $1-3$ $3-5$ $5-7$ $7-10$ Frequency $9$ $22$ $27$ $17$