Question

If the arithmetic mean of six numbers is 4.5, what is the total sum of these numbers?

Answer 1

mean  = 4.5

total number of observations  = n = 6

mean = ∈ x/n

4.5 = ∈x /6

∈x = 4.5 x 6

= 27
---------------------------------------
the sum of all observations  = 27

Answer 2

The total sum of six numbers = 27

Given :

The arithmetic mean of six numbers is 4.5

To find :

The total sum of six numbers

Solution :

Step 1 of 2 :

Write down arithmetic mean and total count of numbers

Here it is given that the arithmetic mean of six numbers is 4.5

Thus we have ,

Arithmetic mean = 4.5

Total count of numbers = 6

Step 2 of 2 :

Calculate total sum of six numbers

The total sum of six numbers

= Arithmetic mean × Total count of numbers

= 4.5 × 6

= 27

━━━━━━━━━━━━━━━━

Learn more from Brainly :-

$1.$ If the sum of twelve marks is 510, what is their average?

https://brainly.in/question/38904597

2. The mean of 5 numbers is 39. If one number is excluded, their mean is 35, find the excluded number

https://brainly.in/question/33419522

#SPJ3