The mean of 6 numbers is 11. the first 4 numbers are 6,8,10,and 12 .find the last two numbers, if one of them is 2 more than the other. About the author Aaliyah
Answer: Let one number be x Second number = 2+x Mean = Sum of all observation/No. of Observations 11 = 6+8+10+12+x+(x+2)/6 11*6 = 38+2x 66 = 38+2x 2x = 66-38 2x = 28 x = 28/2 = 14 First number = x = 14 Second number = x+2 = 14+2 = 16 Reply
Answer:
Let one number be x
Second number = 2+x
Mean = Sum of all observation/No. of Observations
11 = 6+8+10+12+x+(x+2)/6
11*6 = 38+2x
66 = 38+2x
2x = 66-38
2x = 28
x = 28/2 = 14
First number = x = 14
Second number = x+2 = 14+2 = 16