Question

If the mean of 5,7,9+11 and12 is 9 find the value of x

Answer 1

Heyaa♡♡

Your answer is in attachment.

Hope it helped you.

Answer 2

Answer:

1.227

Step-by-step explanation:

mean= Sum of all observations divided by Total

no. of observations

9=9=5+7+9+11+12+x divided by 6

9=44+x divided by 6

9*6= 44x

54 divided by 44=x

Therefore, x=1.227227