Question

mean is x + x + 2 + x + 4 + x + 6 + x + 8 is 13 , so find the value x

Answer 1

Answer:

number of observation= 5

mean of observation = 13

sum of observation= mean of observation× number of observation

= 13 × 5 = 65

sum of observation in terms of x = x+2+x+4+x+6+x+8 = 5x + 20

According to the problem

5x + 20 = 65

5x = 65 - 20

5x = 45

x = 9

the value of x = 9

Step-by-step explanation:

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