The heights (in cm) of 9 students of a class are
148, 144, 152, 155, 160, 147, 150, 149, 145.
Find the median height.

147

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149

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152

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150

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Solution

The correct option is B
149

Arranging the heights in ascending order.

144, 145, 147, 148, 149, 150, 152, 155, 160

There are 9 students, hence the median height will be that of the fifth student i.e., 149 cm.

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The following bar graph represents the heights (in cm) of 50 students of Class XI of a particular school. Study the graph and answer the following questions:

(i) What percentage of the total numbe students have their heights more than cm?
(ii) How many students in the class are in range of maximum height of the class?
(iii) The school wants to provide a partictilai type of tonic to each student below he height of 150 CM to improve his height the cost of the tonic for each student comes out to be Rs. 55, how much amount o money is required?
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The heights (in cm) of 9 students of a class are 148, 144, 152, 155, 160, 147, 150, 149, 145. Find the median height.

The correct option is B 149 Arranging the heights in ascending order. 144, 145, 147, 148, 149, 150, 152, 155, 160 There are 9 students, hence the median height will be that of the fifth student i.e., 149 cm.

The heights (in cm) of 9 students of a class are
148, 144, 152, 155, 160, 147, 150, 149, 145.
Find the median height.

The correct option is B
149

Arranging the heights in ascending order.

144, 145, 147, 148, 149, 150, 152, 155, 160

There are 9 students, hence the median height will be that of the fifth student i.e., 149 cm.