Answer:
the answer is 11
Step-by-step explanation:
3(2)+5=11
All you have to do basically is make up an equation of your own and then plug in the numbers inplace of the variables while still keeping the equation true.
The answer can be anything from : 8-4= 2+2
And all you had to do was simply plug in numbers to make it true. Hoped i helped!
Answer:
a) P(2)=0.270
b) P(X>3)=0.605
c) P=0.410
Step-by-step explanation:
We know that customers arrive at a grocery store at an average of 2.1 per minute. We use the Poisson distribution:

a) In this case: 

Therefore, the probability is P(2)=0.270.
b) In this case: 

Therefore, the probability is P(X>3)=0.605.
c) We know that two customers came in in the first minute. That is why we calculate the probability of at least 5 customers entering the other 2 minutes.
In this case: 

Therefore, the probability is P=0.410.
Answer: The percent of the total was spent on veterinarian bills is 27.70% ( approx).
Step-by-step explanation:
Given, In 2011, Americans spent approximately $50.9 billion on their pets.
i.e. Total amount they spent on pets = $50.9 billion
Amount spent for veterinarian bills. = $14.1 billion was for veterinarian bills.
Then, the percent of the total was spent on veterinarian bills would be :

Hence, the percent of the total was spent on veterinarian bills is 27.70% (approx).
I think the volume is 200