Question

the mean of 2,7,6 and x is 5 and the mean of 18,1,0, x and y is 10. then the value of y is​

Answer 1

Answer:

y=26

Step-by-step explanation:

• 2+7+6+x/4=5
• 15+x/4=5
• 15+x=5×4
• 15+x=20
• x=20-15

=5

X=5

• 18+1+0+x+y/5=10
• 18+1+0+5+y/5=10
• 24+y/5=10
• 24+y=10×5
• 24+y=50
• y=50-24

=26

Y=26

MARK ME AS BRAINLIST

Answer 2

Step-by-step explanation:

mean = sum of all the observations

number of observations

hence means = 2+7+6+x

4

but mean is 5

hence 5 = 2+7+6+x

4

i.e. 20 = 15 + X

hence X= 20-15

= 5

now according to the second condition

mean = sum of all the observations

number of observations

hence mean = 18 +1+0+5+y [substituting X ]

5

but mean is 10

i.e. 10 = 18+1+0+5+y

5

hence 50 = 18+1+0+5+y

hence 50 = 24 + y

hence y = 26