In a school- weights of 62 teachers was recorded as follows-Weight in kg - 45 - 50 - 55 - 60 - 65 - 70 - 75 - 80Number of teachers 62 60 55 39 29 9 4 1Draw a -more than type- ogive for this distributed and hence obtained median from the curve-

Weight (in kg) No. of teachers(more than)More than 45 #160; 62 #160;More than 50 #160; 60 #160;More than 55 #160; ...

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Finding Median of Grouped Data When Class Intervals Are Not Given

In a school, ...

Question

In a school, weights of $62$ teachers was recorded as follows.
Weight (in kg) $\geq 45$ $\geq 50$ $\geq 55$ $\geq 60$ $\geq 65$ $\geq 70$ $\geq 75$ $\geq 80$
Number of teachers $62$ $60$ $55$ $39$ $29$ $9$ $4$
$1$
Draw a 'more than type' ogive for this distributed and hence obtained median from the curve.

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\begin{matrix} W e i g h t (i n k g) & 40 - 45 & 45 - 50 & 50 - 55 & 55 - 60 & 60 - 65 & 65 - 70 & 70 - 75 & 75 - 80 N u m b e r o f p e r s o n s & 4 & 4 & 13 & 5 & 6 & 5 & 2 & 1 \end{matrix}

Production yield (in kg\ha)	$50 - 55$	$55 - 60$	$60 - 65$	$65 - 70$	$70 - 75$	$75 - 80$
Number of farms	$2$	$8$	$12$	$24$	$38$	$16$

The production yield per hectare of wheat of some farms of a village are given in the following table:

Production yield (in kg/ha)	40−45	45−50	50−55	55−60	60−65	65−70	70−75	75−80	80−85
Number of farms	1	9	15	18	40	26	16	14	10

Yield in kg/hectare	50-55	55-60	60-65	65-70	70-75	75-80
Number of farms	2	8	12	24	38	16

100

production of fields	$50 - 55$	$55 - 60$	$60 - 65$	$65 - 70$	$70 - 75$	$75 - 80$
Numbers of farms	$2$	$8$	$12$	$24$	$38$	$16$

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Weight (in kg)	$\geq 45$	$\geq 50$	$\geq 55$	$\geq 60$	$\geq 65$	$\geq 70$	$\geq 75$	$\geq 80$
Number of teachers	$62$	$60$	$55$	$39$	$29$	$9$	$4$	$1$