14 An inspector in an enforcement squad of electricity department visit to a locality of 100 families and record their monthly consumption of electricity, on the basis of family members, electronic items in the house and wastage of electricity, which is summarise in the following table​

Answers 2

Answer:

X=9

y=15

in this question we can solve by using median formula by taking median in place of zero

Answer:

x=9

y= 15

Step-by-step explanation:

median = 525(given)

∴ median class = 500-600

lower limit = 500, height = 100, fi = 20, CF = 36+x , n/2=50

median = l + [(n/2−CF)/fi] × h

525 = 500 + [(50−36-x)/20] × 100

25 = (14 - x) × 5

5 = 14 - x

x=9

76+x+y = 100

76+9+y = 100

85+y = 100

y=15

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