spiderdiscount spiderdiscount
  • 23-04-2015
  • Mathematics
contestada

I have a data set of 25, 28, 36, 21, 28, 15, 24, 30. if a number is added to the set the mean becomes 27, what is the number???

Respuesta :

crisforp
crisforp crisforp
  • 23-04-2015
Mean = Sum of points / Number of points ;

27 = ( 25 + 28 + 36 + 21 + 28 + 15 + 24 + 30 + x ) / 9 ;

243 = 207 + x ;
x = 36 is the number ;
Answer Link

Otras preguntas

14-(2x+5)=-2x+9 [help?]
how do I simplify 8 to the power of negative 2
(√3/2-1/2i)^2 Express in Stanford form a+bi
What were indulgences, as practiced prior to the Reformation?
Which contains an error in logic as worded? a. Maria and I like that new shopping mall because it has lots of shops with really cool clothes. b. The reason Mari
How do different governments react to and try to prevent terrorism?
why is the louisiana purchase treaty an important document in the study of manifest destiny
This is word used to describe a characteristic of a hypothesis. It means you are able to experiment to see how two variables may be related
How was the process of industrialization in the United States similar to or different from how it occurred in Britain?
What is the best way to describe how historians use time periods?