3. A student was asked to find the arithmetic mean of the following 12 numbers: 3,11,7,9,15,13, 8, 19, 17, 21, 14 and x. The mean was 12. The value of x is :
Answers
Answered by
3
Step-by-step explanation:
(3 + 11 + 7 + 9 + 15 + 13 + 8 + 19 + 17 + 21 + 14 + x) / 12 = 12. or 137 + x = 144 or x = 144 - 137 = 7. Answer: Arithmetic mean is sum of the numbers divided by the numbers. So,total numbers,12 * 12(mean) = 144.
Answered by
2
Answer:
Hello Tanzim Akhtar khan Akela
Similar questions