Answer:
156
Step-by-step explanation:
Let the sum of the set of numbers = S
So....the mean would be calculated as the sum of the set divided by its number of entries, or :
S / 12 = 13 ....... multiply both sides by 12
S = 13 * 12 = 156 .....so.....the sum is 156
If the mean of a set of 12 numbers is 13 then the sum of the number will be 156.
The average of a group of numbers is simply defined as the mean. In statistics, the mean is regarded as one of the indicators of central tendency. Arithmetic mean is a term used to describe the average. It's the percentage of the actual number of observations to the sum of the observations.
If the mean of a set of 12 numbers is 13 then the sum of the number will be
Then the mean is given as
Mean = (Sum of the observation / Total number of the observation)
Let the sum of the number will be x. Then we have
13 = x/12
x = 13 × 12
x = 156
More about the mean link is given below.
https://brainly.com/question/521501
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