In the list of five measurements shown below, one is blurred. What must this value be, if the mean of the five measurements is 7?
8 5 10 3 #
2 answers
The blurred out number is 9.
How I got the answer:
8+5+10+3= 26
Since there were 5 sets of numbers I did 35-26 (because 7 times 5 is 35) which is 9. So when you add them up, it would be :
8+5+10+3+9= 35
35/5 = 7
Therefore, the answer is 9.
Hope this helps!
8+5+10+3= 26
Since there were 5 sets of numbers I did 35-26 (because 7 times 5 is 35) which is 9. So when you add them up, it would be :
8+5+10+3+9= 35
35/5 = 7
Therefore, the answer is 9.
Hope this helps!
8 answers