Find the probability.If 81% of scheduled flights actually take place and cancellations are independent events, what is the probability that 3 separate flights will all take place?
A. .81
B. .01
C. .66
D. .53
Answer: D
You might also like to view...
The following table shows the average rice yield Y, in tons per hectare, on Asian farms t years after 1980. Based on the regression equation, what would you expect to be the average rice yield in 2012? t 5 10 20 25Y 3.39 3.64 3.97 4.13? ?
A. 5.19 tons per hectare B. 4.99 tons per hectare C. 5.18 tons per hectare D. 4.52 tons per hectare
Solve the problem.The speed of a ball dropped from a tower is given by the formula f = 32t where f is in feet per second and t is the number of seconds since the ball was dropped. Find the speed of the ball after 4 seconds.
A. 4 feet per second B. 118 feet per second C. 128 feet per second D. 32 feet per second
Solve the problem.The results of a medical test show that of 75 people selected at random who were given the test, 3 tested positive and 72 tested negative. Determine the odds in favor of a person selected at random testing positive on the test.
A. 1 : 25 B. 25 : 1 C. 24 : 1 D. 1 : 24
Solve the problem.Each student in a sixth-grade class recorded the amount of time he or she had spent watching television during the previous week. The times (in hours) are listed below. Find the range.20.5?15.1?8.5?19.9?22.4?29.1?14.1?16.5?21.4?21.1
A. 5.4 hr B. 20.6 hr C. 22.4 hr D. 8.5 hr