marilynrosew55 marilynrosew55
  • 07-05-2017
  • Mathematics
contestada

a 12-sided die is rolled. the set of equally-likely outcomes is {1,2,3,4,5,6,7,8,9,10,11,12}. find the probability of rolling a 7 or a 10.

Respuesta :

Аноним Аноним
  • 07-05-2017
P(A or B)=P(A)+P(B)
P(A)=1/12
P(B) =1/12
1/12 +1/12 = 2/12 =1/6

Answer Link
samarablue12
samarablue12 samarablue12
  • 07-05-2017
well if there are 12 outcomes and all are  different lets think.
How many possibilities are there of rolling a 7?
Just one right? Right
What about 10 its the same thing so only 1 possibility. 
So for rolling a 7 its 1/12= unlikely same with 10
so for rolling a 10 its 1/12= unlikely\
which then you do 1/12 +1/12 = 2/12
then if u want to simplify it's 1/6
therefore the answer is 1/6
hope this helped :)
Answer Link

Otras preguntas

what us the best way to describe the changes to the characters in the story "thank you ma'am​
Which of the following is an example of the Iroquois people adapting to their physical environment? A Using rivers for fishing and travelling B. Establishing th
Please look at picture
what is the action for sally mcpherson
Which statement best describes a pure democracy? A. Everything is determined by the majority opinion. B. Representatives of the people serve as legislators. C
Does logₓ1 have an answer? true/false + reasoning
Help! I'll give you a brainly
What do parallel scales share?
What is the value of x in the equation x - y = x - y = 30, when y = 15?
RIDDLE I am something people love or hate. I change peoples appearances and thoughts. If a person takes care of them self I will go up even higher. To some peop