Question

if mean of five observation x+2,x+4,x+5,x+6 and x+8 is 20, then find the observations.​

Answer 1

Answer:

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Answer 2

Answer:

mean={(x+2)+(x+4)+(x+5)+(x+6)+(x+8)}/5=20

=> x+2+x+4+x+5+x+6+x+8=20×5

=> 5x+25=100

=> 5x=100-25

=> x=75/5

=> x=15

so the observation s are

15+2,15+4,15+5,15+6,15+8

=17,19,20,21,23