Question

Find x if median of 20,21,21,22,23,2x+1,2x+3,28,29,29,30,31 is 26

Answer 1

Hey

Here is your answer,

2x+1+2x+3/2=26
4x+4/2=26
4(x+1)/2=26
2(x+1)=26
x+1=26/2
x+1=13
x=13-1
x=12

Hope it helps you!

Answer 2

hey here is your answer
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20,21,21,22,23,2x+1,2x+3,28,29,29,30,31
n=12
:.median= $\frac{ \frac{n}{2} + ( \frac{n}{2} + 1) }{2}$
$26 = \frac{ \frac{12}{2} + ( \frac{12}{2} + 1) }{2} \\ 26 = \frac{6th + 7th}{2} \\ 26 = \frac{2x + 1 + 2x + 3 }{2} \\ 26 \times 2 = 4x + 4 \\ 52 = 4(x + 1) \\ \frac{52}{4} = x + 1 \\ 13 - 1 = x \\ x = 12$
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hope it may helpful to you
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