48 out of 100 private buses usually run on time. out of the buses that are on time, only 36 are owned by jerry. out of the remaining 52 buses that usually run late, only 7 are owned by jerry. what is the probability that a bus is owned by jerry, given that it runs on time?

Saline iv fluid bags cost $64.20 for 24, 1000 ml bags from one supplier. a new supplier sells 500 ml bags for $2 each. the hospital uses about 10,000, 1000 ml bags each month. nurses report that about half of the bags are more than half full when they are discarded. if you are going to use only one supplier, which size bag provides the best deal, and how much will you save each month? compare the cost of the new supplier to the current one.

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (-4, 0) and (6,0). the y-intercept of thefirst parabola is (0, –12). the y-intercept of the second parabola is (0-24). what is the positive difference between the avalues for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth.

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?