Astudy was done on the timeliness of flights (on-time vs. delayed) of two major airlines: statsair and airmedian. data were collected over a period of time from five major cities and it was found that statsair does better overall (i. e., has a smaller percentage of delayed flights). however, in each of the five cities separately, airmedian does better. which of the following is correct? (a) this situation is mathematically impossible.(b) this is an example of simpson's paradox.(c) "city" is a lurking variable in this example.(d) this is an example of a negative association between variables.(e) both (b) and (c) are correct.

6 hours 48 min

step-by-step explanation:

68÷5=13.6

13.6×30=408min=6 hours 48 min.

hope to and hope that my answer is brainliest.(follow me )

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)

4.5%

step-by-step explanation: