PLEASE ANSWER I'M DESPERATE

a coffee dispenser is supposed to pour out 16 ounces of coffee. the machines are not entirely perfect, since the standard deviation is .3 ounces. assume you test the machine and pour 50 cups of coffee, and come up with a sample mean of 15.8 ounces. what is the probability that you would get a result of 15.8 or lower?

Data for the height of a model rocket launch in the air over time are shown in the table. darryl predicted that the height of the rocket at 8 seconds would be about 93 meters. did darryl make a good prediction? yes, the data are best modeled by a quadratic function. the value of the function at 8 seconds is about 93 meters. yes, the data are best modeled by a linear function. the first differences are constant, so about 93 meters at 8 seconds is reasonable. no, the data are exponential. a better prediction is 150 meters. no, the data are best modeled by a cubic function. a better prediction is 100 meters.