Represent the following data by means of a histogram and find out mode.

Weekly wages : 10-15 15-20 20-25 25-30 30-35 35-40 40-45

No of Workers : 7 19 27 15 12 12 8

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Solution

Hence, mode is 22.

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Question 102

Draw a histogram for the following data. ?
$\begin{matrix} C l a s s i n t e r v a l & 10 - 15 & 15 - 20 & 20 - 25 & 25 - 30 & 30 - 35 & 35 - 40 F r e q u e n c y & 30 & 98 & 80 & 58 & 29 & 50 \end{matrix}$

Q. Find the mode of the following distribution.
(i)

Class-interval:	0-10	10-20	20-30	30-40	40-50	50-60	60-70	70-80
Frequency:	$5$	$8$	$7$	$12$	$28$	$20$	$10$	$10$

(ii)

Class-interval:	10-15	15-20	20-25	25-30	30-35	35-40
Frequency:	$30$	$45$	$75$	$35$	$25$	$15$

(iii)

Class-interval:	25-30	30-35	35-40	40-45	45-50	50-60
Frequency:	$25$	$34$	$50$	$42$	$38$	$14$

Q. Find the mode of the following distribution.

(i)

Class-interval:	0−10	10−20	20−30	30−40	40−50	50−60	60−70	70−80
Frequency:	5	8	7	12	28	20	10	10

(ii)

Class-interval:	10−15	15−20	20−25	25−30	30−35	35−40
Frequency:	30	45	75	35	25	15

(iii)

Class-interval:	25−30	30−35	35−40	40−45	45−50	50−55
Frequency:	25	34	50	42	38	14

(iv)

Class:	0−10	10−20	20−30	30−40	40−50	50−60	60–70
Frequency:	8	10	10	16	12	6	7

Q. Find the mean of following distribution with step-deviation method to the nearest integer

Class	10 - 15	15 - 20	20 - 25	25 - 30	30 - 35	35 - 40
Frequency	5	6	8	12	6	3

Q. Calculate the median from the following frequency distribution:

\begin{matrix} Class & 5 - 10 & 10 - 15 & 15 - 20 & 20 - 25 & 25 - 30 & 30 - 35 & 35 - 40 & 40 - 45 Frequency & 5 & 6 & 15 & 10 & 5 & 4 & 2 & 2 \end{matrix}

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Weekly wages	:	10-15	15-20	20-25	25-30	30-35	35-40	40-45
No of Workers	:	7	19	27	15	12	12	8

Represent the following data by means of a histogram and find out mode. Weekly wages : 10-15 15-20 20-25 25-30 30-35 35-40 40-45 No of Workers : 7 19 27 15 12 12 8

Hence, mode is 22.

Represent the following data by means of a histogram and find out mode.

Weekly wages : 10-15 15-20 20-25 25-30 30-35 35-40 40-45

No of Workers : 7 19 27 15 12 12 8