Question

Please answer Ill give 5 stars to right answers: a neighbors dog barked at tana the last 4 out of 5 times she walked by their house

A: what is the experimental probability that the dog barks at tana when she walks past the house?
B: Predict the number of times the dog will bark at tana if she walks past the house 45 times

Answer 1

Ratio of dog bark is 4:5

Multiply that by 20 each side

Ratio is now 80:100

So 80%

If they walk past 45 time you just have to multiply the ratio 4:5 by 9

36:45

So the dog would bark 36 times