At West Middle School, 30% of students have a dog, 20% of students have a cat, 10% of students have another kind of pet, and 40% of students have no pets.

a) Explain how you can use a random-number table to find the experimental probability that in a group of 5 students, at least 2 will have a dog.

b) Use your model from part a and the table below to find the experimental probability that in a group of 5 students, at least 2 will have a dog.

Table:

65926 31459 31986 65809 80462
27387 39075 46738 21986 59837
91384 10987 26491 68498 98796
32596 26448 31235 63256 53121

Question

At West Middle School, 30% of students have a dog, 20% of students have a cat, 10% of students have another kind of pet, and 40% of students have no pets.

a) Explain how you can use a random-number table to find the experimental probability that in a group of 5 students, at least 2 will have a dog.
 
b) Use your model from part a and the table below to find the experimental probability that in a group of 5 students, at least 2 will have a dog.

Table:

65926  31459  31986  65809  80462 
27387  39075  46738  21986  59837 
91384  10987  26491  68498  98796 
32596  26448  31235  63256  53121

anonymous · Answer

@dan815 @Yothatboy @Polkapen @DDCamp  @jabez177

jabez177 · Answer

Yeah, this is hard. I learned it but forgot it...

anonymous · Answer

its ok i got it now.