Respuesta :
Answer:
40
Step-by-step explanation:
34+39+40+47=160
160/4=40
Hope this helps :)
[tex]\\ \rm\rightarrowtail Mean=\dfrac{\sum n}{n}[/tex]
[tex]\\ \rm\rightarrowtail Mean=\dfrac{34+39+40+47}{4}[/tex]
[tex]\\ \rm\rightarrowtail Mean=\dfrac{160}{4}[/tex]
[tex]\\ \rm\rightarrowtail Mean=40[/tex]