Write the modal class for the following frequency distribution- nbsp-Class-interval-10 minus-15-15 minus-20-20 minus-25-25 minus-30-30 minus-35-35 minus-40-Frequency-30-35-75-40-30-15-

Class Interval 10 minus;15 15 minus;20 20 minus;25 25 minus;30 30 minus;35 35 minus;40 Frequency 30 35 ...

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Write the mod...

Question

Write the modal class for the following frequency distribution:

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

Frequency: 30 35 75 40 30 15

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

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

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

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

Marks Obtained	$10 - 20$	$20 - 30$	$30 - 40$	$40 - 50$
Cumulative Frequency	$7$	$35$	$27$	$34$

Calculation (i) Arithmetic Mean and (ii) Standard Deviation for the following frequency distribution.

Class Interval

Frequency

20 – 25

25 – 30

30 – 35

35 – 40

40 – 45

45 – 50

N = 50

Draw a histogram to represent the following frequency distribution.

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Class Interval	10−15	15−20	20−25	25−30	30−35	35−40
Frequency	30	35	75	40	30	15