+0  
 
0
49
1
avatar

25 students in a high school health class are asked to write down what foods they ate last week. Of the 25
students, 14 write steak, 6 write chicken, and 5 write both steak and chicken. Using this information, answer
each of the following questions.


Let S be the event that a randomly selected student writes steak and C be the event that a randomly selected
student writes chicken.


What is P(S), the probability that a student writes steak?


What is P(C), the probability that a student writes chicken?


What is P(S and C), the probability that a student writes steak and chicken?


What is P(S or C), the probability that a student writes steak or chicken?

 Jan 28, 2020
 #1
avatar+78 
0

-----

 

 

Hi there...

 

The funny thing is that you have all the answers right in front of you.
If you find the text confusing, just write down all the individual numbers separately on a list like the following...

Students-Total = 25
Wrote "Steak" = 14
Wrote "Chicken" = 6
Wrote both = 5

 

From there the answers are very obvious.

I hope that helped...



Kind regards...
BizzyX


-----

 Jan 28, 2020
edited by BizzyX  Jan 28, 2020

9 Online Users