Question

4. The mean of 6, 8, x + 2, 10, 2x - 1, and 2 is 9. Find the value of x and also the value of the observation in the data.

Answer 1

Answer:

x=9,

x+2=11

2x-1=17

Step-by-step explanation:

(6+8+x+2+10+2x-1+2)/6=9

27+3x=54

3x=27

x=9

value of observation : x+2=11, 2x-1=17

Answer 2

Answer:

9, 11 and 17

Step-by-step explanation:

MEAN = sum of all observations/total number of observation

9         = 6+8+x+2+10+2x-1+2/6

54       = 27 + 3x

27       = 3x

x         = 9

x + 2   = 11

2x - 1  = 18  

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