Math, asked by Rameshjagne, 1 year ago

pocket money 10 20 30 40 number of students 4 8 12 6 find the median

Answers

Answered by sohanimkamat

Answer:

168.3

Step-by-step explanation:

Class interval (exclusive) Class interval (inclusive) Class interval frequency Cumulative frequency

160 – 162 159.5 – 162.5 15 15

163 – 165 162.5 – 165.5 118 133 (F)

166 – 168 165.5 – 168.5 142 (f) 275

169 – 171 168.5 – 171.5 127 402

172 – 174 171.5 – 174.5 18 420

N = 420

We have

N = 420

N/2 = 420/ 2 = 120

The cumulative frequency just greater than N/2 is 275 then 165.5 – 168.5 is the median class such, that

L = 165.5, f = 142, F = 133 and h = 168.5 – 165.5 = 3

Mean = L+N2−Ff×h

= Missing close brace = 166.5 + 1.63 = 168.13

Anonymous: it is not right..

Answered by Anonymous

done..

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