Math, asked by belavalia, 7 months ago

9. If x and y are related as 3x + 4y = 20 and the quartile deviation of x in 12. Then the Quartile deviation of y
is:
(a) 16
(b) 14
(c) 10
(d) 9

Answers

Answered by dishita64

1

Answer:

.....???

Step-by-step explanation:

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Answered by chinu7943

11

Answer:

d) 9is the correct answer

Step-by-step explanation:

3x+4y=20

4y=20-3x

y= 20/4-3x/4

QD of y = |b|*QD of x

QD of y = 3/4*12

=9

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