Frequency table of the marks of 50 students as given below-Marks obtained 0-10 10-20 20-30 30-40 40-50 50-60 No- of students 3 f 1 20 10 5 f 2 Given that the median marks are 28-5- the missing frequencies will beA- f1-5- f2-7B- f 1-8- f 2-7C- f 1-7- f 2-5D- f 1-7- f 2-9

The correct option is A f1 = 5, f2 = 7 ...

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Median for Grouped Data

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Question

Frequency table of the marks of 50 students as given below:

Given that the median marks are 28.5, the missing frequencies will be

f₁ = 5, f₂ = 7

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f₁ = 8, f₂ = 7

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f₁ = 7, f₂ = 9

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f₁ = 7, f₂ = 5

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Similar questions

f_{1}

f_{2}

N = 100

32

Class	$0 - 10$	$10 - 20$	$20 - 30$	$30 - 40$	$40 - 50$	$50 - 60$	$T o t a l$
Frequency	$10$	$f_{1}$	$25$	$30$	$f_{2}$	$10$	$100$

Marks obtained by 200 students in an examination are given below :

Draw an ogive for the given distribution taking 2cm = 10 marks on one axis & 2 cm = 20 students on the other axis. Using the graph determine:

50.

120.

f_{1}, f_{2}

\begin{matrix} Class & 0 - 20 & 20 - 40 & 40 - 60 & 60 - 80 & 80 - 100 Frequency & 17 & f_{1} & 32 & f_{2} & 19 \end{matrix}

57.6

f_{1}

f_{2}

f_{1}

f_{2}

Class Interval	$0 - 20$	$20 - 40$	$40 - 60$	$60 - 80$	$80 - 100$	$100 - 120$	Total
Frequency	$7$	$f_{1}$	$12$	$f_{2}$	$8$	$5$	$50$

Class interval	0-10	10-20	20-30	30-40	40-50	50-60	60-70	Total
Frequency	f₁	5	9	12	f₂	3	2	40

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