A ball is tossed into the air. the height of the ball as a function of time can be described by the equation h=-16t^2+72th=−16t
2
+72t, In this equation h is the height of the ball in feet and t is time in seconds.

After how many seconds will the ball hit the ground?

Create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1.

Need now max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.

Determine if the equation defines y as a function of x: 2xy = 1. yes o no