This frequency table represents the number of cars owned by each family on a street. What is the mean number of the cars owned by each family?
A. 2.5
B. 3
C. 4
D. 5.5

How do you write 0.5% as a fraction

100,000 random people were tested for condition a. roberto's doctor told him he tested positive for condition a. if the test is 99% accurate and condition a is rare—one out of every thousand people have it. what is the probability that testing positive means roberto has condition a? 99.0% 1% 9% 99.9%

The radius of a 10 inch right circular cylinder is measured to be 4 inches, but with a possible error of ±0.1 inch. what is the resulting possible error in the volume of the cylinder? include units in your answer.