the mean of 7,9,x+3,12,2x-1 and 3
is 9
Answers
Answered by
8
mean=7+9+x+3+12+2x-1+3/6=9
=33+3x/6=9
=33+3x=54
=3x=21
=x=7
x=7
=33+3x/6=9
=33+3x=54
=3x=21
=x=7
x=7
Answered by
5
mean = sum of all observations /number of observation
here
7+9+(x+3) +12+(2x-1)+3/6 = 9
16+x+3+12+2x-1+3/6=9
34-1+3x/6=9
33+3x/6=9
33+3x=9×6. ( by cross multiplication )
33+3x=54
3x=21
x=7
hope it helps you
here
7+9+(x+3) +12+(2x-1)+3/6 = 9
16+x+3+12+2x-1+3/6=9
34-1+3x/6=9
33+3x/6=9
33+3x=9×6. ( by cross multiplication )
33+3x=54
3x=21
x=7
hope it helps you
mamrut2:
hey you forgot to add 3
yess
Similar questions