There were 3 chihuahuas at the dog park last Saturday, along with 9 other dogs. Considering this data, how many of the next 20 dogs to arrive at the park next Saturday should you expect to be chihuahuas?____ chihuahuas
Q. There were 3 chihuahuas at the dog park last Saturday, along with 9 other dogs. Considering this data, how many of the next 20 dogs to arrive at the park next Saturday should you expect to be chihuahuas?____ chihuahuas
Calculate Total Dogs: Step 1: Calculate the total number of dogs at the park last Saturday.Total dogs = Chihuahuas + Other dogsTotal dogs = 3+9=12
Determine Probability: Step 2: Determine the probability of a dog being a Chihuahua.Probability (Chihuahua) = Number of Chihuahuas / Total number of dogsProbability (Chihuahua) = 123=41
Calculate Expected Chihuahuas: Step 3: Calculate the expected number of Chihuahuas among the next 20 dogs.Expected Chihuahuas = Probability (Chihuahua) × Number of new dogsExpected Chihuahuas = 41×20=5