amberwa110321 amberwa110321

05-05-2021
Mathematics

contestada

Which of the following numerical data sets has a mean of 40?
A) 18,82
B) 21, 34, 65
C) 38, 39, 40, 41
D) 20, 30, 40, 55

help!

Respuesta :

JayBanana JayBanana

05-05-2021

Answer:

The answer is B) 21, 34, 65

Step-by-step explanation:

21 + 34 + 65 = 120

120 divided by 3 = 40.

In order to find the mean you must add up all of the numbers in the numerical data set, then divide that by how many numbers there are. Hope this helps! :)

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